User Handbook
S0 Radio Broadcast Mixer
User Handbook
S0 USER H A N D BOOK
S0 USER HANDBOOK
©Sonifex Ltd, 2013
All Rights Reserved
Revision 1.02, July 2013
Sonifex Ltd, 61, Station Road, Irthlingborough,
Northants, NN9 5QE, England.
Tel : +44 (0)1933 650 700
Fax : +44 (0)1933 650 726
Email : sales@sonifex.co.uk or technical.support@sonifex.co.uk
Web : http://www.sonifex.co.uk
Information in this document is subject to change without notice and does not represent
a commitment on the part of Sonifex Ltd. Sonifex Ltd shall not be liable for any loss or
damage whatsoever arising form the use of information or any error contained in
this manual.
No part of this manual may be reproduced or transmitted in any form or by any means,
electronic or mechanical, including photocopying, recording, or information storage and
retrieval systems, for any purpose other than the purchaser’s personal use, without the
express written permission of Sonifex Ltd.
Unless otherwise noted, all names of companies, products and persons contained herein are
part of a completely fictitious adaptation and are designed solely to document the use of
Sonifex products.
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S0 User Handbook
CO N T E N T S
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Introduction
1
Feature Summary & Overview of Use
Features
Input Channels
USB Audio for Playback & Recording
Output Channels
Monitoring & Headphone Limiter
Metering
Talkback
Channel Remotes
Configuration Settings
Installation Notes
Atmosphere
Electromagnetic Radiation
Dimensions and Cut-Out Size for Flush Mounting
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User Guide
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S0 Input Channels
Channels 1-4 Mono Balanced Mic/Stereo Unbalanced Line inputs
MIC INPUT
MIC TRIM
LINE INPUT
REMOTE OUTPUT
MIC / LINE Button
PGM Button
REC Button
TRIM Control
PAN/BAL Control
CUE PFL Button
FADER Control
START Button
Channels 5-8 Dual Stereo Unbalanced Line/USB Audio Inputs
LINE INPUTS
REMOTE OUTPUT
INP1/INP2 Button
PGM Button
REC Button
TRIM Control
BAL Control
CUE PFL Button
FADER Control
START Button
Channel 9 Telephone Interface/Stereo Unbalanced Auxiliary Inputs
AUX INPUT
R-BAL and C-BAL Controls
S0 User Handbook
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CON T E N TS
Warranty and Liability
Returning the Warranty Card
Unpacking the S0
Safety of Mains Operated Equipment
Fuse Rating
Power Cable and Connection
WEEE & RoHS Directives - Sonifex Statement
Reporting Faults
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Warranty & Safety Information
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CON T E N TS
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CO N T E N T S
LINE (Telephone Interface)
HANDSET
REMOTE OUTPUT
TEL/AUX Button
PGM Button
REC Button
TRIM Control
PAN/BAL Control
CUE/PFL & TB Button
FADER Control
LINE HOLD Button
Main Outputs
PROGRAM OUTPUT
S0 Monitor I/O & USB Channels
MONITOR OUTPUT
LIGHT CONTROL
PRESENTER Headphones
GUEST Headphones
H/PHONE LIMIT Control
USB AUDIO
USB SERIAL
EXT 1 INPUT
LED Meter Display
PGM, REC & EXT 1 Buttons
Monitor AUTO CUE/PFL Button
Monitor MUTE Indicator
AUX INPUT CHANNEL 9
Presenter AUTO CUE/PFL Button
Presenter SPLIT CUE/PFL Button
PRESENTER Headphones
Guest AUTO CUE/PFL Button
Guest TALKBACK Button
GUEST Headphones
Using the Telephone Interface
Making A Telephone Call and Routing It Through The S0
Receiving A Telephone Call and Routing It Through The S0
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Configuration Options
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Modifying the Configuration Options Using Setup Mode
Page 1 – Input Select Modes (LED on PPM Scale 1)
Page 2 – PGM and REC Button Modes (LED on PPM Scale 2)
Page 3 – PFL Modes (LED on PPM Scale 3)
Page 4 – Remote Output Modes (LED on PPM Scale 4)
Modifying the Configuration Options Using SCi Software
Download the latest SCi Software
Connecting the USB Serial Port
Using SCi For The First Time
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USB Audio
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USB Audio Output from the S0
USB Audio Input to the S0
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S0 User Handbook
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CO N T E N T S
Connectors and Cabling
XLR 3 Pin Connectors
RCA (Phono) Connectors
6.35mm (¼”) ‘A’ Gauge Stereo Jack Plugs
Technical Specification For S0
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CON T E N TS
S0 User Handbook
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FIGURES
FI G U RE S
Figures
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Fig 1-1: S0 Mixer - Top View.
Fig 1-2: S0 Mixer - Cut-out Sizes.
Fig 2-1: Channel 1 Rear Panel Connectors.
Fig 2-2: Channel 1 MIC/LINE Button.
Fig 2-3: Mic/Live Channel Strip.
Fig 2-4: Channel 1 FADER Control &START Button.
Fig 2-5: Channel 5 Rear Panel Connectors.
Fig 2-6: Dual Stereo Channel Input & Bus Selections.
Fig 2-7: Dual Stereo Channel Strip.
Fig 2-8: Channel 9 Rear Panel Connectors.
Fig 2-9: Channel 9 TEL/AUX Button.
Fig 2-10: Channel 9 Strip.
Fig 2-11: CUE/ PFL, Fader & LINE/HOLD Button.
Fig 2-12: Mains Outputs.
Fig 2-13: MONITOR I/O & USB.
Fig 2-14: LED Meter Display.
Fig 2-15: PGM, REC and EXT 1 Buttons.
Fig 2-16: Monitor, Presenter and Guests Controls.
Fig 3-1: SCI Launcher Window.
Fig 3-2: SCI Channel Configuration Screen.
Fig 3-3: SCI Monitor Configuration Screen.
Fig 3-4: SCI Info & Updates Screen.
Fig 3-5: Reset Switch.
Fig 4-1: PC Device List.
Fig 5-1: XLR 3 Pin Connectors.
Fig 5-2: RCA (Phone) Connectors.
Fig 5-3: 6.35mm (¼ inch) ‘A’ Gauge Stereo Jack Plugs Used For Headphones
And Monitor Outputs.
Fig 5-4: 6.35mm (¼ inch) ‘A’ Gauge Stereo Jack Plugs used for Remote Outputs.
Fig 5-5: 6.35mm (¼ inch) ‘A’ Gauge Stereo Jack Plugs used for Light Control Output.
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S0 User Handbook
WA R R A N T Y & S A F E T Y
I N F O R M AT I O N
Warranty & Safety Information
Warranty and Liability
Important: the purchaser is advised to read this clause
(a)
The Company agrees to repair or (at its discretion) replace Goods which are found to
be defective (fair wear and tear excepted) and which are returned to the Company
within 12 months of the date of despatch provided that each of the following are
satisfied:
notification of any defect is given to the Company immediately upon its
becoming apparent to the Purchaser;
(ii)
the Goods have only been operated under normal operating conditions and
have only been subject to normal use (and in particular the Goods must have
been correctly connected and must not have been subject to high voltage or
to ionising radiation and must not have been used contrary to the Company’s
technical recommendations);
(iii)
the Goods are returned to the Company’s premises at the Purchaser’s expense;
(iv)
any Goods or parts of Goods replaced shall become the property of the
Company;
(v)
no work whatsoever (other than normal and proper maintenance) has been
carried out to the Goods or any part of the Goods without the Company’s prior
written consent;
(vi)
the defect has not arisen from a design made, furnished or specified by the
Purchaser;
(vii) the Goods have been assembled or incorporated into other goods only in
accordance with any instructions issued by the Company;
(viii) the defect has not arisen from a design modified by the Purchaser;
(ix)
(b)
the defect has not arisen from an item manufactured by a person other than
the Company. In respect of any item manufactured by a person other than the
Company, the Purchaser shall only be entitled to the benefit of any warranty or
guarantee provided by such manufacturer to the Company.
WA R R A N T Y & S A F E T Y I N F O R M AT I O N
(i)
In respect of computer software supplied by the Company the Company does not
warrant that the use of the software will be uninterrupted or error free.
S0 User Handbook
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WA R R A N T Y & S A F E T Y
I N F O R M AT I O N
WA R R A N T Y & S A F E T Y I N F O R M AT I O N
(c)
(i)
for death or personal injury to the extent that it results from the negligence of
the Company, its employees (whilst in the course of their employment) or its
agents (in the course of the agency);
(ii)
for any breach by the Company of any statutory undertaking as to title, quiet
possession and freedom from encumbrance.
(d)
Subject to conditions (a) and (c) from the time of despatch of the Goods from the
Company’s premises the Purchaser shall be responsible for any defect in the Goods
or loss, damage, nuisance or interference whatsoever consequential economic or
otherwise or wastage of material resulting from or caused by or to the Goods. In
particular the Company shall not be liable for any loss of profits or other economic
losses. The Company accordingly excludes all liability for the same.
(e)
At the request and expense of the Purchaser the Company will test the Goods to
ascertain performance levels and provide a report of the results of that test. The report
will be accurate at the time of the test, to the best of the belief and knowledge of the
Company, and the Company accepts no liability in respect of its accuracy beyond that
set out in Condition (a).
(f )
Subject to Condition (e) no representation, condition, warranty or other term, express
or implied (by statute or otherwise) is given by the Company that the Goods are of
any particular quality or standard or will enable the Purchaser to attain any particular
performance or result, or will be suitable for any particular purpose or use under
specific conditions or will provide any particular capacity, notwithstanding that the
requirement for such performance, result or capacity or that such particular purpose
or conditions may have been known (or ought to have been known) to the Company,
its employees or agents.
(g)
(i)
To the extent that the Company is held legally liable to the Purchaser for any
single breach of contract, tort, representation or other act or default, the
Company’s liability for the same shall not exceed the Price of the Goods.
(ii)
The restriction of liability in Condition (g)(i) shall not apply to any liability
accepted by the Seller in Condition (c).
(h)
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The Company accepts liability:
Where the Goods are sold under a consumer transaction (as defined by the Consumer
Transactions (Restrictions on Statements) Order 1976) the statutory rights of the
Purchaser are not affected by these Conditions of Sale.
S0 User Handbook
WA R R A N T Y & S A F E T Y
I N F O R M AT I O N
Returning the Warranty Card
In order to register the date of purchase so that we can keep you informed of any design
improvements or modifications, it is important to complete the warranty registration
document that is enclosed and return it to Sonifex Ltd in the UK, or register online at
www.sonifex.co.uk/register
For your own records you should write down the serial number of the S0 Mixer.
S0 Mixer Serial Number
Each product is shipped in protective packaging and should be inspected for damage.
before use. Where an item is found to have transit damage, notify your supplier immediately
with all the relevant details of the shipment. Packing materials should be kept for inspection
and also for if the product needs to be returned.
S0 User Handbook
WA R R A N T Y & S A F E T Y I N F O R M AT I O N
Unpacking the S0
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WA R R A N T Y & S A F E T Y
I N F O R M AT I O N
Safety of Mains Operated Equipment
This equipment has been designed to meet the safety regulations currently advised
in the country of purchase and it conforms to the safety regulations specified by
use of the CE Mark.
The power supply is rated to 95 - 265VAC at 47 – 63Hz with a fuse of 2A.
WA R R A N T Y & S A F E T Y I N F O R M AT I O N
Warning: There are no user serviceably parts inside the machine. If you should ever
need to look inside the unit, always disconnect the mains supply before removing the
equipment covers.
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Fuse Rating
The product is supplied with a single fuse in the live conducting path of the power-in feed
at the power supply. For reasons of safety it is important that the correct rating and type of
fuse is used. Incorrectly rated fuses could present a possible fire hazard, under equipment
fault conditions.
Power Cable and Connection
An IEC power connector is supplied with the product, which has a moulded plug attached –
this is a legal requirement. If no moulded plug has been supplied with your product, please
contact your supplier, because an IEC connector is always supplied from the Sonifex factory.
If for any reason, you need to use the product with a different power cable, you should use
the following wiring guidelines
Wire Colour
Green, or green and yellow
Blue, or Black
Brown, or Red
Connection
Earth (E)
Neutral (N)
Live (L)
S0 User Handbook
WA R R A N T Y & S A F E T Y
I N F O R M AT I O N
WEEE & RoHS Directives - Sonifex Statement
The Waste Electrical and Electronic Equipment (WEEE) Directive was agreed on
13 February 2003, along with the related Directive 2002/95/EC on Restrictions
of the use of certain Hazardous Substances in electrical and electronic
equipment (RoHS).
Sonifex Ltd will be happy to give you information about local organisations that can
reprocess the products, or alternatively all products that have reached “end of use” can be
returned to Sonifex and will be reprocessed correctly free of charge.
Sonifex Ltd has phased out the use of certain hazardous substances identified in the
European Union’s Restriction of Hazardous Substances (RoHS) directive. The RoHS directive
limits the use of certain hazardous substances currently used in EEE manufacture, including
lead, mercury, cadmium, hexavalent chromium, and halide-containing compounds PBB
(polybrominated biphenyl) and PBDE (polybrominated diphenyl ether). Elimination of these
substances will result in more environmentally friendly recycling of electronic equipment.
For the products which Sonifex manufacture, the main area where products were affected
was in the use of lead for manufacturing and assembling electronics circuit boards.
Sonifex Ltd practices lead-free (LF) manufacturing processes. LF solder is used on the
surface-mount PCB manufacturing processes and for hand soldering. The printed circuit
boards (PCBs) used are either gold plated, or immersion tin plated, both of which use no
lead. Historically the PCBs were hot air solder levelled (HASL) PCBs which used tin/lead
based solder.
The manufacturing processes include the assembly of purchased components from various
sources. Product is offered as RoHS compliant, or LF, only after sufficient evidence is received
from the component manufacturers that their components are RoHS compliant. Sonifex
Ltd relies solely on the distributor, or manufacturer, of the components for identification of
RoHS compliance. Thus whilst every effort is made to ensure compliance, Sonifex Ltd makes
no warranty, or certification, or declaration of compliance concerning said components.
WA R R A N T Y & S A F E T Y I N F O R M AT I O N
The Waste Electrical and Electronic Equipment Directive (WEEE) aims to minimise the
impacts of electrical and electronic equipment on the environment during their life times
and when they become waste. It applies to a huge spectrum of products. It encourages
and sets criteria for the collection, treatment, recycling and recovery of waste electrical and
electronic equipment. All products manufactured by Sonifex Ltd have the WEEE directive
label placed on the case. It gives a contact for individuals who are unsure about the correct
procedure when the product has reached its “end of use”.
Sonifex Ltd defines “Lead Free” as pertaining to any product, which has been manufactured
by Sonifex Ltd using components which have been declared by the manufacturers as
“Lead Free”. All statements by Sonifex Ltd of RoHS compliance are based on component
manufacturer documentation.
S0 User Handbook
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R E P O R T I N G A FAU LT
Reporting Faults
Although this Sonifex product is manufactured to the highest standards, it is possible that
minor faults may appear in the equipment over its normal lifetime. If you find any problems
with the product, please contact your Sonifex distributor, or contact Sonifex directly at the
following address, or fax with a copy of this completed sheet :
REP ORTI N G A FAU LT
To :
Sonifex Ltd,
From:
Name
61, Station Road,
Position
Irthlingborough,
Company
Northants.
Address
NN9 5QE, UK
Tel : +44 (0)1933 650 700
Tel
Fax : +44 (0)1933 650 726
Fax
Email : technical.support@sonifex.co.uk
Email
For the Serial No. of your machine, see the
back panel of the unit.
Serial No.
Please describe the error in as much detail as possible (for example what you were doing
when the problem occurred, what actually happened, etc)
Description of Error
Also, if you have any suggestions for additions or upgrades to the unit , we would like to
hear what they are :
Additions that I Would Like to See
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S0 User Handbook
INTRODUCTION
1
Introduction
The S0 is a high quality yet simple to operate radio broadcast mixer ideally suited to
community radio stations, for educational purposes and for internet radio. It is easy to use
and provides the ideal solution for those who do not require the advanced functionality of a
more complex unit.
Using many of the same components found on the S2 and S1 mixers, the S0 offers quality
and reliability in a cost effective package. It also allows presenters and DJs to be up and
running quickly with a fully featured radio studio mixer.
INTRODUC TION
Easy to understand, the S0 includes a telephone hybrid for making and recording telephone
calls and a 3.5mm stereo jack for plugging in an mp3 player. The addition of a USB port
allows for recording to a PC and for playing a PC automation system directly through the
mixer. The headphone outputs have a built in limiter to offer hearing protection and the
studio speakers mute when a microphone fader is open, with automatic mic live sign
switching.
Fig 1-1: S0 Mixer - Top View.
S0 User Handbook
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INTRODUCTION
INTRODUC TION
Feature Summary & Overview of Use
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mixer.
Features
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The Sonifex S0 mixer is a compact, low cost, fixed format broadcast mixing console
designed for on-air radio use. It uses the same high quality circuitry and components as the
Sonifex S2 and S1 mixers to provide an audio experience second to none. The S0 can be
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holes.
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S0 User Handbook
INTRODUCTION
1
The uncomplicated and intuitive front panel layout ensures that the unit appeals to novices
and broadcast professionals alike, whilst a range of user configurable options allows for
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The console consists of nine input channels:
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4 x mono balanced XLR mic/stereo unbalanced RCA phono line inputs.
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4 x dual stereo unbalanced RCA phono line inputs.
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1 x telephone balance unit (with line and handset ports)/stereo unbalanced RCA phono
auxiliary input with a parallel 3.5mm stereo jack input on the front panel.
Input Channels
Input source buttons at the top of each channel strip are used to select the required mono
or stereo source. The mixer has two main stereo buses, PGM (Program) and REC (Record), so
each channel also has PGM and REC buttons to independently select which mixer bus the
selected input is routed to.
The XLR microphone inputs on channels 1 to 4 have individually selectable +48V phantom
power and a gain calibration potentiometer providing up to 65dB of gain for the pre-amp.
Input channel 1 also serves as the microphone input for a dedicated talkback channel.
INTRODUC TION
Providing in total 4 mic, 12 stereo line, 1 TBU & 1 stereo auxiliary inputs which you can
switch between.
The stereo RCA phono line inputs on channels 1 to 8 have 10dB of gain at the input to
compensate for unbalanced consumer inputs.
Input channel 9 is a TBU and stereo auxiliary input channel. The TBU allows direct
connection to a telephone line and allows calls to be made and received through the mixer
using the handset connection. The auxiliary channel can switch between 2 independent
inputs, one on the rear panel and one on the front panel.
Any channel which has the fader up is routed to the selected output, either PGM or REC or
both.
Gain for each channel is trimmed by the front panel TRIM control providing ±15dB of gain. A
PAN/BAL(ance) control is available to facilitate stereo imaging.
The use of VCAs controlled by the ALPS long throw 100mm faders gives a smooth,
repeatable response and ensures tight stereo tracking while eliminating mechanical and
electronic noise.
USB Audio for Playback & Recording
The S0 has the option to send and receive audio over USB. This allows the audio on the REC
bus to be sent to a PC for recording or monitoring purposes. Also, the S0 can receive a USB
audio stream from a PC and route it to the auxiliary inputs on channel 8. Alternatively, this
signal can be routed to channels 5, 6 or 7 if required.
S0 User Handbook
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INTRODUCTION
Output Channels
The S0 has separate stereo PGM and REC bus outputs. The PGM bus is output on balanced
stereo XLRs and the REC bus is output on unbalanced stereo RCA phono connectors. There
are monitor outputs for presenter headphones, guest headphones and loudspeakers.
Monitoring & Headphone Limiter
INTRODUC TION
The monitor loudspeakers, presenter headphones and guest headphones are on 6.35mm
stereo jack sockets and the headphones can be plugged in to the front and rear of the mixer.
The monitor loudspeaker and headphone levels are independently variable between 0 (cut
off ) and 10 (max).
With the concerns over listening levels being too high in headphones, the addition of an
adjustable limit level potentiometer on the rear panel of the mixer is a great idea which
limits the maximum level of the audio routed to the presenter and guest headphone
outputs. An illuminated MUTE LED shows when a live microphone channel has muted the
loudspeakers and there is a MUTE contact output available to illuminate a ‘MIC LIVE’ light via
a 6.35mm stereo jack socket on the rear panel.
A three way electronically interlocking illuminated switch bank selects the source routed
to the loudspeaker and headphone outputs from either PGM, REC or from an additional
unbalanced stereo RCA phono input EXT 1. This external input can be used for monitoring
an off air signal or studio output.
Green illuminated AUTO CUE/PFL (pre fade listen) buttons adjacent to each level control
allow the automatic monitoring of any channel that has been selected to pre-fade, either to
the monitors or headphones.
For the presenter headphones, SPLIT CUE/PFL can be selected which places the selected
source in mono in the left ear, and pre-fade in mono in the right ear.
Metering
A pair of bright 21 segment LED meters can be configured to show either VU or PPM
metering. The meters follow the selection of the presenter headphones including any prefade or split pre-fade function.
Talkback
A separate TALKBACK button is provided to allow the presenter to talk to a guest on the
guest headphones. The S0 uses input channel 1 as the talkback source.
Channel Remotes
The remote outputs for each channel are highly configurable providing a comprehensive
range of options to interface external equipment to the mixer. Each channel input has its
own START and STOP remote controls which can be triggered when the channel is routed
to the PGM or REC bus and the fader is opened or closed. The remotes can be set-up to be
either pulsed or continuous latched outputs, and if in pulsed mode the START button has
the capability to produce repeated start pulses.
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S0 User Handbook
INTRODUCTION
1
Configuration Settings
The S0 has a range of software configurable options which can be used to customize the
operation of the mixer. It is possible to enable or disable specific inputs, enable phantom
power for the microphone channels and limit which buses each channel can be routed to.
Other settings control auto cancelling of PRE FADE when the channel fader is opened and all
the remote output configurations.
The S0 has an integral universal switch mode power supply, which uses an IEC mains inlet.
Installation Notes
The S0 mixer should be installed in an area which is not subject to excessive heat or cold.
Also, you should avoid installing it in atmospheric conditions which are dusty, smoky or
dirty, or where there is moisture or vibration. Do not use any liquids to clean the fascia of the
mixer: a soft dry brush is ideal. Use a clean cloth moistened with water or ethyl alcohol to
clean the trim. Other solvents may cause damage to paint or plastic parts.
Electromagnetic Radiation
Avoid using the S0 mixer close to strong sources of electromagnetic radiation such as, video
monitors or high power electric cabling. This may cause degradation of the audio quality
due to induced voltages in connecting leads and chassis. In all cases the S0 mixer should be
installed and serviced by qualified personnel.
INTRODUC TION
Atmosphere
Dimensions and Cut-Out Size for Flush Mounting
External dimensions: 483mm (W) x 356mm (D) x 125mm (H)
The cut-out size is for reference only and should be checked with your mixer.
345mm
440mm
Fig 1-2: S0 Mixer - Cut-out Sizes.
S0 User Handbook
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USER GUIDE
User Guide
Many of the options and default settings described in this section can be modified. Full
details of all the configuration options and their default settings can be found in the
Configuration Options section on page 20.
S0 Input Channels
USER GUIDE
The S0 has 9 fixed format channels with up to 3 selectable inputs on each channel.
Channels 1-4:
Mono Balanced XLR Microphone / Stereo Unbalanced RCA Line inputs
Channels 5-8:
Dual Stereo Unbalanced RCA Line / USB Audio inputs
Channel 9:
Telephone Interface / Stereo Unbalanced RCA Auxiliary (Rear) / Stereo
Unbalanced Jack Auxiliary (Front) inputs
Channels 1-4 Mono Balanced Mic/Stereo Unbalanced Line inputs
MIC INPUT
This mono balanced XLR is the microphone input to the channel. The S0
supports both dynamic (unpowered) and condenser (powered using 48V
DC phantom power) microphones. By default, only channel 1 is configured
to supply phantom power. The phantom power settings are part of the
Configuration Options.
MIC TRIM
This small multi turn screw adjuster sets the amplification level for the
microphone input, which is applied prior to the channels TRIM control. The
available gain range is from +24dB to +65dB (ref -50dBu input) and allows
a wide range of microphone types to be used.
LINE INPUT
This stereo unbalanced RCA (phono) is the line input to the channel. It has
10dB of gain at the input and is designed to connect directly to consumer
level equipment such as CD players and other hi-fi equipment.
Fig 2-1: Channel
1 Rear Panel
Connectors.
REMOTE OUTPUT
This 6.35mm (¼”) stereo jack socket is the remote output for the channel. It
can be used to control external equipment such as turning on a “Mic Live”
indication, or starting a CD player. There are 2 separate signals, remote start
and remote stop, which are both open collector outputs. These signals
can be configured to act differently depending on the input selected. The
remote output settings are part of the Configuration Options.
MIC / LINE Button
Pressing this button changes the channel input selection between MIC and
LINE. The button illuminates red to indicate that the LINE input is selected.
When the channel’s fader is open, the input selection cannot be changed.
When the MIC input is selected, these channels can be configured to
supply 48V to microphones requiring Phantom Power.
6
Fig 2-2:
Channel 1 MIC/
LINE Button.
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This button can be disabled so that the selected input cannot be
changed. The button operation and phantom power settings are part
of the Configuration Options.
PGM Button
This button allows the output of the channel to be mixed onto the
Program Bus output. The button illuminates green to indicate the
channel is active on the Program Bus. This button can be disabled via
the Configuration Options, so that it is permanently on or off.
REC Button
USER GUIDE
This button allows the output of the channel to be mixed onto the
Record bus output. The button illuminates red to indicate the channel
is active on the Record Bus. This button can be disabled via the
Configuration Options, so that it is permanently on or off.
TRIM Control
This control allows the level of the audio on this channel to be
adjusted by ±15dB. This additional gain is applied prior to the channels
fader, and is useful for setting relative levels between audio sources on
different channels.
Note: It is a good idea to set up all the audio channels so that they are
all at the same reference level when the fader is fully up, meaning the
mix levels are determined solely by the position of the faders.
PAN/BAL Control
This control has two functions depending on whether MIC or LINE is
selected.
Fig 2-3: Mic/Line
Channel Strip.
In MIC mode the control acts as PAN and allows the mono input to be positioned in the
stereo image. With the control in the centre position, the signal is present on both the left
and right channels. Turning the control fully anti-clockwise pans the signal to the left by
increasing the level by 3dB and the signal on the right channel is turned off. Turning the
control fully clockwise pans the signal to the right by increasing the level by 3dB. The signal
on the left channel is turned off.
In LINE mode the control acts as BAL (balance) and is used to alter the stereo image of the
stereo input. With the control in the centre position, the signal is un-altered. Turning the
control fully anti-clockwise shifts the signal to the left by increasing the gain by 6dB and
the signal on the right channel is reduced by 6dB. Turning the control fully clockwise shifts
the signal to the right by increasing the gain by 6dB while the signal on the left channel is
reduced by 6dB.
CUE PFL Button
Selecting CUE PFL routes the pre-fader input signal to the monitoring section where the
signal can be heard on the Monitor, Presenter or Guest headphones (provided that the
associated AUTO CUE/PFL button is selected). The level can then be checked on the meters
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USER GUIDE
and adjusted via the TRIM control, and the pan or balance can be set
with the PAN/BAL control. Provided that the fader is closed, the signal
will not be routed to the PGM or REC outputs even if they are selected.
This button is illuminated green to indicate CUE PFL is active and it
has a momentary and latched action: if the button is held down, CUE
PFL is cancelled when released. There is a Configuration Option to
automatically cancel CUE PFL when the fader is opened. This option is
enabled by default.
USER GUIDE
FADER Control
The 100mm VCA fader is a linear level control that operates between fully
attenuated in its lowest position to unity gain when fully open.
START Button
This button has a different function depending on whether MIC or LINE
is selected. When in MIC mode, the button is an indicator and shows the
state of the channel and the remote output as follows:
Off
The channel is not routed to either the PGM or
REC bus.
Illuminated Red
The channel is routed to the PGM or REC bus,
the fader is closed and the remote stop output
is enabled.
Illuminated Green
The channel is routed to the PGM or REC bus,
the fader is open and the remote start output
is enabled.
This is the default operation when in MIC mode, but this can be changed
in the Configuration Options.
When in LINE mode, the button indicates the state of the channel, and
also controls the operation of the remote outputs as follows:
8
Fig 2-4: Channel 1
FADER Control &
START Button.
Off
The remote outputs are disabled. Pressing the button will enable/
disable the remote outputs, but they can only be disabled when the
fader is closed.
Flashing Red
The remote outputs are enabled, but the channel is not currently
routed to the PGM or REC bus so the remote start and stop outputs
are inactive.
Illuminated Red
The remote outputs are enabled, the channel is routed to the PGM
or REC bus and the fader is closed. If the fader is opened, the remote
start output will become active and give a momentary pulse for
0.5 seconds.
Illuminated Green
The remote outputs are enabled, the channel is routed to the PGM
or REC bus and the fader is open. If the button is pressed, the remote
S0 User Handbook
USER GUIDE
2
start output will become active and give a momentary pulse for
0.5 seconds. If the fader is closed, the remote stop will become active
and give a momentary pulse for 0.5 seconds.
This is the default operation when in LINE mode, but this can be changed in the
Configuration Options.
Channels 5-8 Dual Stereo Unbalanced Line/USB Audio
Inputs
LINE INPUTS
USER GUIDE
The dual stereo unbalanced RCA phonos are the line inputs to the
channel. They have 10dB of gain at the input and are designed to
connect directly to consumer level equipment such as CD players and
other hi-fi equipment. There are two stereo inputs per channel fader.
REMOTE OUTPUT
This 6.35mm (¼”) stereo jack socket is the remote output for the
channel. It can be used to control external equipment such as starting
a CD player. There are 2 separate signals, remote start and remote
stop which are both open collector outputs. These signals can be
configured to act differently depending on the input selected. The
remote output settings are part of the Configuration Options.
INP1/INP2 Button
Pressing this button changes the channel selection between the two
LINE inputs. INP1 corresponds to the lower numbered line input, i.e.
on channel 5, INP1 is line 5/1 and INP2 corresponds to the higher
numbered line input, i.e. on channel 5, INP2 is line 5/2. It can also be
configured to allow the USB Audio input to the mixer to be routed to
this channel. The button is illuminated red to indicate when the INP2
input is selected, and amber to indicate when the USB Audio input is
selected. When the channel’s fader is open, the input selection cannot
be changed. This button can be disabled so that the selected input
cannot be changed. The button operation settings are part of the
Configuration Options. By default, channel 8 is enabled for INP1/INP2
and USB Audio to be selectable. For channels 5-7, INP1/INP2 only are
selectable.
Fig 2-5: Channel
5 Rear Panel
Connectors.
PGM Button
This button allows the output of the channel to be mixed onto the
Program Bus output. The button is illuminated green to indicate the
channel is active on the Program Bus. This button can be disabled via
the Configuration Options, so that it is permanently on or off.
REC Button
Fig 2-6:
Dual Stereo
Channel
Input & Bus
Selections.
This button allows the output of the channel to be mixed onto the
Record bus output. The button is illuminated red to indicate the
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USER GUIDE
channel is active on the Record Bus. This button can be disabled via
the Configuration Options, so that it is permanently on or off.
TRIM Control
USER GUIDE
This control allows the level of the audio on this channel to be adjusted
by ±15dB. This additional gain is applied prior to the channels fader, and
is useful for setting relative levels between audio sources on different
channels.
Note: It is a good idea to set up all the audio channels so that they are all
at the same reference level when the fader is fully up, meaning the mix
levels are determined solely by the position of the faders.
BAL Control
This control is used to alter the stereo image of the stereo input. With the
control in the centre position, the signal is un-altered. Turning the control
fully anti-clockwise shifts the signal to the left by increasing the gain by
6dB with the signal on the right channel reduced by 6dB. Turning the
control fully clockwise shifts the signal to the right by increasing the gain
by 6dB with the signal on the left channel reduced by 6dB.
CUE PFL Button
Selecting CUE PFL routes the pre-fader input signal to the monitoring
section where the signal can be heard on the Monitor, Presenter or Guest
headphones (provided that the associated AUTO CUE/PFL button is
selected). The level can then be checked on the meters and adjusted via
the TRIM control, and the balance set with the BAL control. Provided that
the fader is closed, the signal will not be routed to the PGM or REC outputs
even if they are selected. This button is illuminated green to indicate CUE
PFL is active and it has a momentary and latched action: if the button is
held down, CUE PFL is cancelled when released. There is a Configuration
Option to automatically cancel CUE PFL when the fader is opened. This
option is enabled by default.
FADER Control
The 100mm VCA fader is a linear level control that operates between fully
attenuated in its lowest position to unity gain when fully open.
START Button
Fig 2-7: Dual Stereo
Channel Strip.
This button indicates the state of the channel, and also controls the operation of the remote
outputs as follows:
10
Off
The remote outputs are disabled. Pressing the button will enable/
disable the remote outputs, but they can only be disabled when
the fader is closed.
Flashing Red
The remote outputs are enabled, but the channel is not currently
routed to the PGM or REC bus so the remote start and stop outputs
are inactive.
S0 User Handbook
USER GUIDE
Illuminated Red
The remote outputs are enabled, the channel is routed to the PGM or
REC bus and the fader is closed. If the fader is opened, the remote start
output will become active and give a momentary pulse for 0.5seconds.
Illuminated Green
The remote outputs are enabled, the channel is routed to the PGM
or REC bus and the fader is open. If the button is pressed, the remote
start output will become active and give a momentary pulse for
0.5 seconds. If the fader is closed, the remote stop will become active
and give a momentary pulse for 0.5 seconds.
2
This is the default operation, but this can be changed in the Configuration Options.
USER GUIDE
Channel 9 Telephone Interface/Stereo Unbalanced Auxiliary
Inputs
AUX INPUT
This stereo unbalanced RCA (phono) is the auxiliary input to the channel.
It has 10dB of gain at the input and is designed to connect directly to
consumer level equipment such as CD players and other hi-fi equipment.
There is a second auxiliary 3.5mm stereo jack socket input, which is
also routed to channel 9, which is located on the front panel below
the monitor mute indicator. The AUX inputs can be mixed or selected
independently depending on the Configuration Options chosen.
R-BAL and C-BAL Controls
These small multi turn screw adjusters are used to tune the telephone
interface to the characteristics of a standard analogue telephone line.
They are factory set and should not need to be adjusted.
LINE (Telephone Interface)
This RJ11 socket allows the S0 to be connected directly to an analogue
telephone line.
HANDSET
Fig 2-8: Channel
9 Rear Panel
Connectors.
This RJ11 socket is the connection for an analogue telephone handset. With the S0
connected to an analogue telephone line, the handset allows calls to be made and received.
REMOTE OUTPUT
This 6.35mm (¼”) stereo jack socket is the remote output for the channel. It can indicate
the status of the telephone interface when the channel is in TEL mode, or it can be used to
control external equipment such as starting a CD player when the channel is in AUX mode.
There are 2 separate signals, remote start and remote stop which are both open collector
outputs. These signals can be configured to act differently depending on the input selected.
The remote output settings are part of the Configuration Options.
TEL/AUX Button
Pressing this button changes the channel input connection between
TEL and AUX. There are two auxiliary inputs to channel 9, one on
the rear panel and one on the front panel below the monitor mute
S0 User Handbook
Fig 2-9:
Channel 9 TEL/
AUX Button.
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USER GUIDE
indicator. By default, these inputs can be independently selected. The
button is illuminated red to indicate when the rear panel AUX input
is selected, and amber to indicate when the front panel AUX input is
selected. When the channels fader is open, the input selection cannot
be changed. This button can be disabled so that the selected input
cannot be changed. The button operation settings are part of the
Configuration Options.
USER GUIDE
PGM Button
This button allows the output of the channel to be mixed onto the
Program Bus output. The button is illuminated green to indicate the
channel is active on the Program Bus. This button can be disabled via
the Configuration Options, so that it is permanently on or off.
REC Button
This button allows the output of the channel to be mixed onto the
Record bus output. The button is illuminated red to indicate the
channel is active on the Record Bus. This button can be disabled via the
Configuration Options, so that it is permanently on or off.
TRIM Control
This control allows the level of the audio on this channel to be adjusted
by ±15dB. This additional gain is applied prior to the channels fader,
and is useful for setting relative levels between audio sources on
different channels.
Note: It is a good idea to set up all the audio channels so that they are
all at the same reference level when the fader is fully up, meaning the
mix levels are determined solely by the position of the faders.
Fig 2-10: Channel 9
Strip.
PAN/BAL Control
This control has two functions depending on whether TEL or AUX is selected.
In TEL mode the control acts as PAN and allows the mono input to be positioned in the
stereo image. With the control in the centre position, the signal is present on both the left
and right channels. Turning the control fully anti-clockwise pans the signal to the left by
increasing the level by 3dB and the signal on the right channel is turned off. Turning the
control fully clockwise pans the signal to the right by increasing the level by 3dB and the
signal on the left channel is turned off.
In AUX mode the control acts as BAL (balance) and is used to alter the stereo image of the
stereo input. With the control in the centre position, the signal is un-altered. Turning the
control fully anti-clockwise shifts the signal to the left by increasing the gain by 6dB with
the signal on the right channel reduced by 6dB. Turning the control fully clockwise shifts the
signal to the right by increasing the gain by 6dB with the signal on the left channel reduced
by 6dB.
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S0 User Handbook
USER GUIDE
2
CUE/PFL & TB Button
USER GUIDE
Selecting CUE/PFL & TB routes the pre-fader input signal to the monitoring
section where the signal can be heard on the Monitor, Presenter or Guest
headphones provided the associated AUTO CUE/PFL button is selected.
The level can then be checked on the meters and adjusted via the TRIM
control, and the pan or balance set with the PAN/BAL control. When the
channel is in TEL mode, selecting CUE/PFL & TB also enables talkback from
the channel 1 microphone to the caller on the telephone, without having
to open the fader on channel 1. Provided the fader is closed, the signal will
not be routed to the PGM or REC outputs even if they are selected. This
button is illuminated green to indicate CUE/PFL & TB is active, and it has a
momentary and latched action; if the button is held down, CUE/PFL & TB is
cancelled when released. There is a Configuration Option to automatically
cancel CUE/PFL & TB when the fader is opened. This option is enabled by
default.
FADER Control
The 100mm VCA fader is a linear level control that operates between fully
attenuated in its lowest position to unity gain when fully open.
LINE HOLD Button
This button has a different function depending on whether TEL or AUX is
selected. When in TEL mode, the button controls the connection to the
telephone line and indicates the state of the connection as follows:
Off
The telephone line is disconnected. The remote
stop output is active. Pressing the button will connect
the channel to the telephone line.
Flashing Red
The channel is connected to the telephone line, but
it is not currently routed to the PGM or REC bus.
The remote start output is active. Pressing the button
will disconnect the channel from the telephone line.
Illuminated Red
The channel is connected to the telephone line and it PFL, Fader & LINE/
HOLD Button.
is routed to the PGM or REC bus. The remote start
output is active. Pressing the button will disconnect
the channel from the telephone line.
Pulsing Red
This indicates that the telephone line is ringing.
Pressing the button will connect the channel to the
telephone line and pick up the call.
Fig 2-11: CUE/
This is the default operation when in TEL mode, but this can be changed in
the Configuration Options.
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USER GUIDE
USER GUIDE
When in AUX mode, the button indicates the state of the channel, and also controls the
operation of the remote outputs as follows:
Off
The remote outputs as disabled. Pressing the button will
enable/disable the remote outputs, but they can only be disabled
when the fader is closed.
Flashing Red
The remote outputs are enabled, but the channel is not currently
routed to the PGM or REC bus so the remote start and stop outputs
are inactive.
Illuminated Red
The remote outputs are enabled, the channel is routed to the PGM
or REC bus and the fader is closed. If the fader is opened, the remote
start output will become active and give a momentary pulse for
0.5 seconds.
Illuminated Green
The remote outputs are enabled, the channel is routed to the PGM
or REC bus and the fader is open. If the button is pressed, the remote
start output will become active and give a momentary pulse for
0.5 seconds. If the fader is closed, the remote stop will become active
and give a momentary pulse for 0.5 seconds.
This is the default operation when in AUX mode, but this can be changed in the
Configuration Options.
Main Outputs
The S0 has 2 main outputs mounted on the rear panel.
PROGRAM OUTPUT
This is the main mixing desk output which would normally be
connected to the transmission or encoding system. All input channels
that have the PGM bus selected and the fader open will be mixed onto
this stereo balanced XLR output.
RECORD OUTPUT
The record output provides an independent mix that would typically
be used as a record source for jingles, program content and prerecorded interviews. All input channels that have the REC bus selected
and the fader open will be mixed onto this stereo unbalanced RCA
(phono) output. By default, the content of the record output is also
routed to the USB Audio output channel. This can be changed so that
the program output audio is routed to the USB Audio output channel.
See the USB Audio section on page 29 for more details.
14
Fig 2-12: Mains
Outputs.
S0 User Handbook
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2
S0 Monitor I/O & USB Channels
MONITOR OUTPUT
This stereo unbalanced 6.35mm (¼”) socket output is typically used to
feed the studio monitor speakers. This output is automatically muted if
a microphone channel is routed to the PGM or REC bus and the fader is
open. This is to stop unwanted feedback. A suitable external amplifier
is required to drive the loudspeakers from this output. Alternatively,
active loudspeakers can be connected directly.
LIGHT CONTROL
USER GUIDE
This 6.35mm (¼ inch) socket provides a switching contact to allow an
external “MIC LIVE” indicator to be controlled. The connector provides
a normally open switch between the Tip and Sleeve, and a normally
closed switch between the Ring and the Sleeve. The switch is activated
when a microphone channel is routed to the PGM or REC bus and the
fader is open.
PRESENTER Headphones
This stereo 6.35mm (¼”) socket is the feed to the presenter
headphones. It is wired in parallel with the presenter headphone
connector on the front panel of the mixer.
Fig 2-13: MONITOR
I/O & USB.
GUEST Headphones
This Stereo 6.35mm (¼ inch) socket is the feed to the guest headphones. It is wired in
parallel with the guest headphone connector on the front panel of the mixer.
H/PHONE LIMIT Control
This small multi turn screw adjuster sets the maximum audio level of the signal fed to the
presenter and guest headphones. It is designed to protect the headphone users from
excessive audio levels. Once the audio level exceeds the limit threshold, the audio feed to
the headphones remains at the limit level. When the limiter is active, the audio may become
distorted. If this happens either reduce the audio level of the headphone signal or increase
the headphone limit level. Note: This limiter has been added to protect the hearing of the
users of this mixer, so please use the H/PHONE LIMIT control sensibly.
USB AUDIO
This USB Type B connector is the bi-directional USB Audio port that provides a USB Audio
output of the signal on the REC or PGM bus, and can accept a USB Audio input which is
routed to channels 5-8. The USB Audio input signal can also be routed automatically to the
CUE/PFL bus allowing the audio to be heard in any on the monitor channels that have the
AUTO CUE/PFL selected. This setting is part of the configuration options. See the USB Audio
section on page 29 for more details.
USB SERIAL
This USB Type B connector provides the USB Serial port to allow the S0 to be connected to a
PC. Using this connection, the Configuration Options can be modified using the Sonifex SCi
software. Full details of all the configuration options and their default settings can be found
in the Configuration Options section on page 20.
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USER GUIDE
EXT 1 INPUT
These stereo unbalanced RCA phonos provides an external input that would typically be
used to monitor the on-air or post-processor output to ensure it is correct.
USER GUIDE
LED Meter Display
The LED Meters give a visual representation of the audio routed to the presenter
headphones including CUE/PFL and SPLIT CUE/PFL signals. They can be configured to
display either PPM or VU. The PPM meters have a 1-7 scale and are configured such that a 1
kHz signal, at 0dBu at the PGM output, will indicate a meter reading of 4. Each mark on the
PPM scale indicates a 4 dB change in signal level. The VU meter operates between -20 and
+3 volume units and follows the standard definition for a VU meter. A red LED indicates
which scale is currently selected. To change scale, ensure all faders are closed, press and hold
the PGM button and then press the EXT 1 button.
Fig 2-14: LED Meter Display.
PGM, REC & EXT 1 Buttons
These buttons select the source for the monitoring section of the S0. The selected source
will be routed to the monitor output and the presenter and guest headphones. These
buttons do not affect the signals on the Main Program and Record outputs. The PGM button
illuminates green, the REC button illuminates red and the EXT 1 button illuminates amber
when selected. One button is selected at all times.
Fig 2-15: PGM, REC and EXT 1 Buttons.
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Monitor, Presenter & Guest
Level Controls
These controls independently
adjust the volume of the signals
sent to the loudspeaker monitor,
presenter and guest headphones.
The presenter and guest outputs
are protected by a level limiter that
restricts the audio level fed to the
headphones.
USER GUIDE
Monitor AUTO CUE/PFL
Button
When this button is selected, the
normal output fed to the monitor
loudspeaker will be replaced if one
or more input channels have CUE
PFL selected. The channels with
CUE/PFL selected will be mixed
and fed to this output without
having to have the fader open. This
button illuminates green when
selected.
Monitor MUTE Indicator
This indicator illuminates to show
when the monitor loudspeaker
output has been automatically
muted due to one of the
microphone channels being open
and routed to the PGM or REC bus.
The LIGHT CONTROL output on
the rear panel gives the option to
use an external indicator to show
when the monitor loudspeaker is
muted, i.e. when a microphone
output is active.
S0 User Handbook
Fig 2-16: Monitor, Presenter and Guests Controls.
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AUX INPUT CHANNEL 9
This stereo unbalanced 3.5mm jack socket is the auxiliary input to channel 9. It has 10dB
of gain at the input and is designed to connect directly to consumer level equipment. This
input is in addition to the primary auxiliary input on the rear panel.
Presenter AUTO CUE/PFL Button
USER GUIDE
When this button is selected, the normal output fed to the presenter’s headphones will be
replaced if one or more input channels have CUE/PFL selected. The channels with CUE/PFL
selected will be mixed and fed to this output without having to have the fader open. This
button illuminates green when selected.
Presenter SPLIT CUE/PFL Button
This button allows the presenter to simultaneously monitor the selected source (PGM, REC
or EXT 1), and any channel that has CUE/PFL selected. The selected source is routed in mono
to the left ear and the CUE/PFL channels are routed in mono to the right ear. This button can
only be selected if the presenter AUTO CUE/PFL button is selected and it illuminates amber
when selected.
PRESENTER Headphones
This stereo 6.35mm (¼”) socket is the feed to the presenter headphones. It is wired in
parallel with the presenter headphone connector on the rear panel of the mixer.
Guest AUTO CUE/PFL Button
When this button is selected, the normal output fed to the guest’s headphones will be
replaced if one or more input channels have CUE/PFL selected. The channels with CUE/PFL
selected will be mixed and fed to this output without having to have the fader open. This
button illuminates green when selected.
Guest TALKBACK Button
This button allows a presenter using a microphone on channel 1 to communicate with
the guest via the guest headphones. When the button is selected, the microphone signal
on channel 1 is routed to the guest headphones without the need to select CUE PFL or
open the fader on channel 1. This button is illuminated red to indicate that TALKBACK is
active, and it has a momentary and latched action; if the button is held down, TALKBACK is
cancelled when released.
GUEST Headphones
This stereo 6.35mm (¼”) socket is the feed to the guest headphones. It is wired in parallel
with the guest headphone connector on the rear panel of the mixer.
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Using the Telephone Interface
The Telephone Interface built into the S0 allows you to directly connect a standard analogue
telephone line and telephone handset. You can then route telephone calls through the
S0 mixing desk allowing you to perform telephone interviews, broadcast requests or host
‘phone in’ style programs.
Making A Telephone Call and Routing It Through The S0
1.
Connect all cables as described above.
2.
Select TEL mode on channel 9. The TEL/AUX button should not be illuminated.
3.
Ensure the LINE HOLD button is not selected.
4.
Using the telephone handset, dial the required number.
5.
When the call is answered, it can be transferred to the S0. Ensure the fader on channel
9 is closed and then press CUE/PFL & TB. This will automatically activate the LINE
HOLD button which will connect the call to the S0. The presenter can talk to the
person on the telephone via microphone channel 1 and listen on the headphones, but
the audio will not be routed to the PGM or REC bus outputs.
6.
The telephone handset can now be replaced if required.
7.
To put the call to air, open the fader on channel 9. The audio will appear on the
selected PGM or REC output.
8.
To terminate the call, close the fader on channel 9 and press the LINE HOLD button to
disconnect the mixer from the telephone line.
USER GUIDE
Connect the LINE connector on the rear of the S0 to a standard analogue telephone line
using a suitable cable. Connection to a standard BT phone socket will typically require a
cable with a male RJ11 to a BT phone plug. Connect the HANDSET connector on the rear
of the S0 to a standard telephone handset. If all the connections are correct, on lifting the
telephone handset, a standard dial tone should be heard.
Receiving A Telephone Call and Routing It Through The S0
1.
When a telephone call is received, the handset will ring, and the LINE HOLD button
will pulse to indicate a caller is waiting.
2.
The call can be answered either by lifting the telephone handset, or by pressing the
CUE/PFL button. Ensure the fader on channel 9 is closed. The presenter can talk to the
person on the telephone via microphone channel 1 and listen on the headphones.
Provided the fader is closed, the audio will not be routed to the PGM or REC bus
outputs.
3.
If the telephone handset was used, it can now be replaced if required.
4.
To put the call to air, open the fader on channel 9. The audio will appear on the
selected PGM or REC output.
5.
To terminate the call, close the fader on channel 9 and press the LINE HOLD button to
disconnect the mixer from the telephone line.
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CO N F I G U R AT I O N O P T I O N S
Configuration Options
The S0 has a range of configuration options that allow different aspects of the mixer’s
operation to be customised. This can be done using the Sonifex SCi software that runs on a
PC, or through a dedicated setup mode on the mixer itself.
CON FIGUR ATION OP T I ON S
Modifying the Configuration Options Using Setup Mode
The setup mode allows the configuration options to be modified directly, without the
need to connect the S0 to a PC. The configuration settings are presented in pages, with the
current page displayed on the PPM scale on the LED meters display. To change a setting, first
select the relevant page, then using the details in the table below, press the relevant button
to select the required option setting. The buttons used to select the settings will continually
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To Enter Setup Mode:
1.
Ensure all faders are closed.
2.
Press and hold the Monitor, Presenter and Guest AUTO CUE/PFL buttons.
3.
Press the Monitor PGM button 5 times within 2 seconds.
4.
A single sweep on the LED meters indicates that setup mode has been entered and
the buttons can be released.
To change the current page, press the Guest TALKBACK button. The LED meters display will
indicate the new page on the PPM scale.
To Exit Setup Mode:
1.
Press and hold the Guest TALKBACK button for 2 seconds.
2.
A dual sweep on the LED meters indicates return to normal operation and the button
can be released.
To return all configuration options to the default settings:
20
1.
Remove power from the unit.
2.
Ensure all faders are closed.
3.
Press and hold the Monitor REC, Monitor AUTO CUE/PFL, Presenter AUTO CUE/PFL and
Guest AUTO CUE/PFL buttons.
4.
Apply power to the unit. A single sweep on the LED meters indicates that the
configuration options are being returned to defaults. The buttons can be released.
5.
A dual sweep on the LED meters indicates return to normal operation.
S0 User Handbook
CO N F I G U R AT I O N O P T I O N S
3
Page 1 – Input Select Modes (LED on PPM Scale 1)
Channels 1-4 Input Select Modes are set using the MIC/LINE buttons for each channel.
MIC & LINE inputs available for selection. Phantom power is off (default
for channels 2-4).
Mode 2
MIC & LINE inputs available for selection. Phantom power is on (default
for channel 1).
Mode 3
MIC input only, the button is disabled. Phantom power is off.
Mode 4
MIC input only, the button is disabled. Phantom power is on.
Mode 5
LINE input only, the button is disabled. Phantom power is off.
Channels 5-8 Input Select Modes are set using the INP1/INP2 buttons. INP1 refers to the line
input with the lower number on the channel i.e. on channel 5 INP1 is LINE 5/1. INP2 refers to
the line input with the higher number on the channel i.e. on channel 5 INP2 is LINE 5/2.
Mode 1
INP1 & INP2 inputs available for selection (default for channels 5-7).
Mode 2
INP1 input only, the button is disabled.
Mode 3
INP2 input only, the button is disabled.
Mode 4
INP1 & USB Audio inputs available for selection.
Mode 5
INP2 & USB Audio inputs available for selection.
Mode 6
USB Audio input only, the button is disabled.
Mode 7
INP1 & INP2 & USB Audio inputs available for selection (default for channel 8).
CON FI G U R ATION OP TION S
Mode 1
Channel 9 Input Select Modes are set using the TEL/AUX button. AUX1 refers to the AUX
input on the rear panel. AUX2 refers to the AUX input on the front panel.
Mode 1
TEL & AUX1 & AUX2 inputs available for selection (default).
Mode 2
TEL & AUX1 inputs available for selection.
Mode 3
TEL & AUX2 inputs available for selection.
Mode 4
TEL input only, the button is disabled.
Mode 5
AUX1 & AUX2 inputs available for selection.
Mode 6
AUX1 input only, the button is disabled.
Mode 7
AUX2 input only, the button is disabled.
Channel 9 Cleanfeed Control when CUE/PFL TALKBACK is active. This is set using the CUE/
PFL TALKBACK button.
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CO N F I G U R AT I O N O P T I O N S
Mode 1
Cleanfeed is muted when CUE/PFL TALKBACK is active (default).
Mode 2
Cleanfeed level is reduced when CUE/PFL TALKBACK is active.
CON FIGUR ATION OP T I ON S
USB Audio Input CUE/PFL Mode. This is used to automatically route the USB Audio input
to the CUE/PFL bus allowing it to be monitored on the Monitor, Presenter and Guest
Headphone outputs. It is set using the Monitor AUTO CUE/PFL button.
Mode 1
The USB Audio input is automatically routed to the CUE/PFL bus as well as
being available on channels 5-8 (default).
Mode 2
The USB Audio input is not routed to the CUE/PFL bus.
Press the guest talkback button to go to page 2.
Page 2 – PGM and REC Button Modes (LED on PPM Scale 2)
PGM Button Modes are set using the PGM buttons on channels 1-9 and can be activated on
a per channel basis.
Mode 1
PGM is selectable (default).
Mode 2
PGM is always on, the button is disabled.
Mode 3
PGM is always off, the button is disabled.
REC Button Modes are set using the REC buttons on channels 1-9 and can be activated on a
per channel basis.
Mode 1
REC is selectable (default).
Mode 2
REC is always on, the button is disabled.
Mode 3
REC is always off, the button is disabled.
Page 3 – PFL Modes (LED on PPM Scale 3)
CUE/PFL Automatic Cancel Mode is set using the CUE/PFL buttons on channels 1-9 and can
be activated on a per channel basis.
Mode 1 CUE/PFL is automatically cancelled when the fader is opened (default).
Mode 2
CUE/PFL is not automatically cancelled when the fader is opened.
AUTO CUE/PFL Button Modes are set using the Monitor, Presenter and Guest AUTO CUE/PFL
buttons.
22
Mode 1
AUTO CUE/PFL is selectable (default).
Mode 2
AUTO CUE/PFL is always on, the button is disabled.
Mode 3
AUTO CUE/PFL is always off, the button is disabled.
S0 User Handbook
CO N F I G U R AT I O N O P T I O N S
3
Page 4 – Remote Output Modes (LED on PPM Scale 4)
Remote Output Modes are set using the START buttons on channels 1-8 and the LINE HOLD
button on channel 9. The Remote output modes are set independently for all inputs on each
channel. The input select buttons on each channel select which input the remote mode
is assigned to. A channel is considered active when either PGM or REC is selected and the
fader is open.
Latching remote start when channel or LINE HOLD is active. Latching remote
stop when channel or LINE HOLD is inactive.
Mode 2
Momentary remote start for 0.5 seconds when the channel becomes active.
Additional momentary remote starts, for 0.5 seconds each, can be activated
by pressing the START button. Momentary remote stop for 0.5 seconds when the
channel becomes inactive.
Mode 3
Momentary remote start for 0.5 seconds when the channel becomes active.
Repeat start is disabled. Momentary remote stop for 0.5 seconds when the
channel becomes inactive.
Mode 4
The remote outputs are disabled.
Mode 5
Remotes and START button states are set by USB Serial commands.
Mode 6
Latching remote start when LINE HOLD is active, telephone line ringing indicated
on remote stop. Available for selection on channel 9 TEL mode only.
Defaults: Channels 1-4
Channels 5-8
Channel 9
MIC
LINE
INP1
INP2
USB Audio
TEL
AUX Rear
AUX Front
Mode 1
Mode 2
Mode 2
Mode 2
Mode 2
Mode 6
Mode 2
Mode 2
CON FI G U R ATION OP TION S
Mode 1
The CUE/PFL buttons are used to set whether the remotes are active when CUE/PFL is
activated and deactivated or not.
Mode 1
Remotes are active when CUE/PFL is activated/deactivated (default).
Mode 2
Remotes are not active when CUE/PFL is activated/deactivated.
S0 User Handbook
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CO N F I G U R AT I O N O P T I O N S
Modifying the Configuration Options Using SCi Software
Sonifex SCi software is a free of charge software package available to configure the S0 Mixer,
as well as many other Sonifex products. The S0 Mixer is supported in SCi version 2.0.5 and
above. SCi is designed to run on a computer running Microsoft Windows® XP or later.
Download the latest SCi Software
This is located on the Sonifex website in the Sonifex Downloads section: http://www.sonifex.
co.uk/technical/software/index.shtml
CON FIGUR ATION OP T I ON S
Download and then run the installer, and follow the on screen instructions to install the
software.
Connecting the USB Serial Port
The S0 uses a USB Serial port instead of a standard RS232 with a 9-way ‘D’ type connector.
Connect the S0 to a spare USB port on the computer using a standard USB lead. The
computer will automatically install the required drivers when the S0 is connected for the
first time.
Using SCi For The First Time
Once the S0 Mixer is connected to the computer, launch the
SCi program. The first thing to appear is the SCi Launcher
which shows a list of current devices, which initially will be
blank. Click on the large “plus” button to start the device
discovery scan. The SCi Device List will be shown and
the software will search for any Sonifex products that are
connected to the computer’s serial and network ports. Once
the scan is complete, the S0 Mixer should appear in the Device
List window. If it is not listed, check the cable between the S0
and the computer and that the S0 is powered and repeat the
scan. With the scan successfully completed, the Device List
can be closed and the Launcher should now show the devices
that were discovered. If the S0 is in the list, but it has been
reported as “Not Supported”, this indicates that the specific
driver file for the S0 is not installed. Visit the Sonifex website
to download the S0 driver, restart SCi and repeat the device
discovery scan.
Click on the S0-Mixer entry to launch the S0 SCi interface.
Fig 3-1: SCI Launcher Window.
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S0 User Handbook
CO N F I G U R AT I O N O P T I O N S
3
SCi for the S0
The S0 SCi interface offers an alternative method of setting the configuration options.
The available options are divided into 3 main sections; Channel Configuration, Monitor
Configuration and Info & Updates. The bottom of the main screen shows the product and
version information of the connected unit.
CON FI G U R ATION OP TION S
Fig 3-2: SCI Channel Configuration Screen.
The first tab shows the Channel Configuration options. The settings are shown individually
for each of the 9 input channels and set the input and button modes and the remotes
operation. To change the settings on any channel, first select the relevant channel and then
select the required settings for that channel.
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CO N F I G U R AT I O N O P T I O N S
CON FIGUR ATION OP T I ON S
The second tab shows the Monitor Configuration options.
Fig 3-3: SCI Monitor Configuration Screen.
These settings control the operation of the AUTO CUE/PFL button modes and the audio
meter display type. This section also controls the USB Audio input CUE/PFL mode. This
determines whether the USB Audio input channel is automatically routed to the monitor
section. If enabled, the USB Audio input will be available on any of the monitor channels
that have the AUTO CUE/PFL function enabled.
To store the configuration option settings onto the connected S0, press the Save Settings
button. The S0 will then restart with the new option values.
The current configuration option settings on the connected S0 can be reloaded into SCi
at any point by pressing the Reload Settings button. Any changes made since the settings
were last reloaded or saved will be lost.
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S0 User Handbook
CO N F I G U R AT I O N O P T I O N S
3
The last tab, Info & Updates allows the current configuration settings in SCI to be saved to a file
on the computer. This makes it easier to configure multiple units with the same configuration
settings. First select the required settings in the Channel and Monitor Configuration tabs,
and then press the Save Configuration button. A save dialog will be displayed allowing the
filename to be entered. Upon pressing the save button the current settings will be stored in
the selected file. These settings can then be loaded whilst connected to a different unit by
pressing the Load Configuration button. The settings stored in the file will be loaded into SCI
and automatically uploaded into the connected S0.
CON FI G U R ATION OP TION S
Fig 3-4: SCI Info & Updates Screen.
The Restore Defaults button returns the configuration options on the connected S0 to factory
default settings.
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CO N F I G U R AT I O N O P T I O N S
CON FIGUR ATION OP T I ON S
The Firmware Update function allows the S0 firmware to be regularly updated with new
features and bug fixes. New firmware releases will be made available on the Sonifex website.
To update the firmware, press the Update button and select the firmware file. The update
only takes a few minutes and the process can be monitored on the progress bar on SCi and
the meter display on the S0, which gradually changes from fully illuminated to off. When the
update is complete, the S0 will automatically reboot and SCi will reconnect and show the
new firmware version number.
The S0 is designed to power up in the same state it was in when power was removed. It
is possible to clear these saved settings so the mixer starts with all buttons and routing
switched off, except for those enabled by the default configuration options:
1.
Ensure all faders are closed.
2.
Press and hold the Monitor EXT1, Monitor AUTO CUE/PFL, Presenter AUTO CUE/PFL
and Guest AUTO CUE/PFL buttons.
3.
Press Reset Switch as shown in image below. A single sweep on the LED meters
indicates that the saved states are being reset. The buttons can be released.
4.
A dual sweep on the LED meters indicates return to normal operation.
Reset Switch
Fig 3-5: Reset Switch.
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S0 User Handbook
U S B AU D I O
4
USB Audio
U S B AU D I O
The USB Audio port on the S0 allows live audio
transfer between the mixer and a computer
or other compatible USB Audio device. This
effectively provides an additional input channel
to the mixer that can be routed to channels 5-8,
and a simultaneous output which contains the
audio from either the PGM or REC output. The
stereo USB Audio port is configured to run at a
sample rate of 44.1 kHz with 16 bit samples in
both directions.
No special software drivers are required; simply
connect a standard USB cable between the S0
and the computer. To check that a connection
has been made, open the Device Manager in
Microsoft Windows®, and locate the Sound,
video and game controllers section. A new entry
should appear “S0 USB Audio”.
USB Audio Output from the S0
The USB Audio output from the S0 is, by default,
encoded from the audio signal on the REC bus. It
is possible to change this so that the USB Audio
output is encoded from the audio signal on
the PGM bus. This involves changing 2 jumper
settings that are located on the PCB directly
under the front panel on the S0. Contact Sonifex
Technical Support for details on how to change
these settings.
Fig 4-1: PC Device List.
Once the USB Audio port is connected to a computer, it is possible to listen to and record
the audio. Microsoft Windows® identifies the USB Audio input from the S0 as an additional
Line input recording device with the device name S0 USB Audio.
USB Audio Input to the S0
Microsoft Windows® identifies the USB Audio output from the computer as an additional
Line output playback device with the device name S0 USB Audio. The USB Audio input to
the S0 is decoded and routed to channels 5-8. The USB Audio input on these channels is
selected when the INP1/INP2 button is illuminated amber. It might be necessary to change
the configuration options to enable this input to be selected. The USB Audio input can
also be used as a pre-fade input such that the audio is automatically routed to any of the
monitor and headphone outputs with AUTO CUE/PFL selected once audio is present.
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CO N N E C TO R S & C A B L I N G
Connectors and Cabling
Many of the problems associated with installing and maintaining a mixing console are due
to the use of poor cables or faulty connections. It is recommended that, wherever possible,
pre-wired cables are purchased from recommended manufacturers. If you need bespoke
cables making, please ensure that a qualified engineer carries out the work.
The main types of connectors used with the S0 mixers are the following:
CON N EC TORS & C A BLI N G
XLR 3 Pin Connectors
The following diagram shows the pin details for the 3 pin XLR sockets and plugs:
MIC Inputs
PGM Outputs
Pin 2. Hot (In Phase) Signal
Pin 2. Hot (In Phase) Signal
Pin 1. Ground (Screen) Signal
Pin 1. Ground (Screen) Signal
Pin 3. Cold (Out Of Phase) Signal
Pin 3. Cold (Out Of Phase) Signal
3 Pin Socket
(Female)
3 Pin Socket
(Male)
Fig 5-1: XLR 3 Pin Connectors.
RCA (Phono) Connectors
This connector is used on the LINE, AUX (Rear) and EXT1 inputs and the REC output.
Stereo Left & Right Inputs and Outputs
Inner. Hot (In Phase) Signal
Outer. Ground (Screen) Signal
RCA Phono
(Female)
Fig 5-2: RCA (Phone) Connectors.
6.35mm (¼”) ‘A’ Gauge Stereo Jack Plugs
This connector is used on the Monitor Loudspeaker output and the Presenter and Guest
headphone outputs.
Tip – Left Signal
Ring – Right Signal
Sleeve – Ground (Screen) Signal
Fig 5-3: 6.35mm (¼ inch) ‘A’ Gauge Stereo Jack Plugs Used For Headphones And Monitor Outputs.
This connector type is also used on the Remote Outputs.
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S0 User Handbook
CO N N E C TO R S & C A B L I N G
5
Tip – Remote Start Open
Collector Output
Ring – Remote Stop Open
Collector Output
Sleeve – Ground (Screen) Signal
Fig 5-4: 6.35mm (¼ inch) ‘A’ Gauge Stereo Jack Plugs used for Remote Outputs.
This connector type is also used on the Light Control Output.
Ring – Normally Closed
Switch to Sleeve
Sleeve – Switch Common
Fig 5-5: 6.35mm (¼ inch) ‘A’ Gauge Stereo Jack Plugs used for Light Control Output.
S0 User Handbook
CON N E C TORS & C ABLING
Tip – Normally Open
Switch to Sleeve
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T E C H N I C A L S P E C I F I C AT I O N
Technical Specification For S0
TECHNIC AL SP E CI FI C AT I ON
Mic Inputs Audio Specification
Input Impedance:
> 1k5Ω electronically balanced
Input Gain Range:
Preset pot +24dB to +67dB ref -50dBu, TRIM pot ± 15dB
Frequency Response:
40Hz to 20kHz –1dB, +0dB
Mic input E.I.N.:
-130dB with 150Ω source
Phantom Power:
+48V to each mic input (SCi selectable)
Common Mode Rejection
Ratio:
> 60dB typically
Pan Range:
Off/-3dB Centre/Off
Stereo Line Inputs Audio Specification
Input Impedance:
> 20kΩ electronically unbalanced
Input Gain Range:
+10dB ref 0dBu at PGM output, TRIM pot ± 15dB
Frequency Response:
20Hz to 20kHz –0.5dB, +0dB
Noise (20Hz-20kHz):
-92dBu ref 0dB (fader down, no routing)
Total Harmonic
Distortion:
0.015% at 1kHz, 0.015% at 10kHz ref +8dBu
Balance Range:
± 6dB
Outputs Audio Specification
Output Impedance:
PGM output: < 50Ω electronically balanced
REC output: < 75Ω unbalanced Monitor output: < 75Ω
unbalanced Headphone output load: > 16Ω, recommended 250Ω
Maximum Output:
PGM output: +26dBu balancedREC output: Level:+16dBu
unbalanced
Input & Output Connections
Audio Inputs:
32
4 x Microphone XLR-3 pin sockets
12 x Pair stereo line RCA phono sockets
1 x Pair stereo aux RCA phono sockets
1 x Stereo aux 3.5mm jack socket
S0 User Handbook
T E C H N I C A L S P E C I F I C AT I O N
2 x XLR-3 pin plug (balanced)
1 x Stereo pair RCA phono sockets
Monitor Inputs: 1 x Stereo pair RCA phono sockets
Monitor Outputs:
5 x 6.35mm (1/4”) stereo jack sockets
(2 x presenter, 2 x guest, 1 x loudspeaker)
Remote Outputs:
9 x 6.35mm (1/4”) stereo jack sockets (one per channel)
1 x 6.35mm (1/4”) stereo jack socket for light control
Telephone: 2 x RJ11 6/4 (1 x line, 1 x handset)
USB Audio:
1 x Type-B receptacle
USB Serial:
1 x Type-B receptacle
Mains Input:
Filtered IEC, continuously rated 85-264VAC, 47-63Hz, 45w
nominal, 50w peak
Fuse Rating:
Anti-surge fuse 2A 20 x 5mm
Equipment Type
S0:
S0 radio broadcast mixer
Physical Specification
Dimensions (Raw):
48.3cm (W) x 35.6cm (D) x 12.5cm (H)
19” (W) x 14” (D) x 4.9” (H) Dimensions (Boxed):
67cm (W) x 44cm (D) x 25cm (H)
26.4” (W) x 17.3” (D) x 9.84” (H)
Cut-Out Dimensions:
44cm (W) x 34.7cm (D)
17.32” (W) x 13.66” (D)
Weight:
Nett: 8.5kg Gross: 10.12kg
Nett: 18.7lb Gross: 22.26lb
S0 User Handbook
T E CH N I C A L SP ECIFIC ATIO N
Audio Outputs:
PGM:
REC: 6
33
N OT E S
N OT E S
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S0 User Handbook
N OT E S
N OT E S
S0 User Handbook
35
w w w. s o n i fe x . c o. u k
t:+44 (0)1933 650 700
f:+44 (0)1933 650 726
s a l e s @ s o n i fe x . co. u k
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