S2 Digital I/O Analogue Radio Broadcast Mixer

S2 Digital I/O Analogue Radio Broadcast Mixer
S2 Digital I/O Analogue
Radio Broadcast Mixer
2014-15
Catalogue
Radio Broadcast Mixing Consoles - S2
S2 Digital I/O Analogue Radio Broadcast Mixer
Category: Radio Broadcast Mixing
Consoles - S2 Digital I/O Analogue Radio
Broadcast Mixer.
Product Function: Modular multichannel analogue on-air broadcast mixer
with digital I/O.
Typical Applications: Community,
student, hospital and small scale radio
broadcast mixer, secondary or backup
on-air mixer.
Features:
• Wide range of input and output
channels.
• PFL/cue buttons & bus.
• Fader-start operation of equipment.
• Automatic monitor muting on miclive.
• Light controlling remote outputs.
• Optional EQ on input modules.
• Gram amp input options.
• 2 main audio buses, allowing you
to broadcast on the PRG bus while
recording on the AUD bus.
• Bus output selection on each module.
• Separate 1U power supply.
178
S2 is a modular broadcast mixer which
offers digital audio quality with analogue
reliability in a modular format. S2 has
both digital and analogue input channels,
together with simultaneous analogue and
digital outputs.
Following on from the Sovereign range of
audio mixers, S2 combines all the features
needed of a radio broadcast mixer in a
stylish, flush-mounting chassis
Innovative Design
• The S2 chassis is available in 5 module
width sections, allowing 5, 10, 15, 20, 25
and 30 module width mixers. This means
S2 can be used for small newsrooms or
large on-air situations.
• Modular “pop-up” input and output
channels means that the mixer can
be maintained simply and quickly.
Hot-swappable input channels can be
individually removed and repaired whilst
still on-air.
• The angle of the meterbridge can be
varied and set for best viewing position.
• Any module can be in any position so
that customising the mixer for your own
purposes is easy.
• Large back-lit buttons allow you to see
the status of the mixer at all times.
• The fitted rear panel hides all cable
connections but can be simply unclipped
and reclipped for maintenance.
• The modular design of the desk gives you
the flexibility to expand it at a later date
• You can even add another S2 mixer
and link them together with a bus
connector cable to allow for split
desk configurations.
Radio Broadcast Mixer Using S2-25 Chassis
and Script Space.
Radio Broadcast Mixing Consoles - S2 Input Channels
S2 Input Channels
Superb Audio Quality and
Unquestionable Reliability
• The S2 uses Crystal semiconductor parts
to allow input and output of digital audio
signals up to 24 bit, 96kHz sample rate.
• The analogue signal paths use low
noise circuitry to provide superb audio
performance well capable of satisfying
radio listeners worldwide.
• The high reliability and build quality of S2
minimises the chance of failure, avoiding
lost air-time. Each module is individually
checked twice before being assembled into
the finished chassis and the whole unit is
tested before shipping.
• ALPS long throw 100mm faders give a
smooth, repeatable response and the XLR
Neutrik connectors used are an industry
standard.
• The use of VCAs controlled by the faders
ensures tight stereo tracking and eliminates
mechanical and electronic noise.
• S2 has a separate 1U power supply
providing regulated, ripple-free power to
the mixer. There is an optional switcher
to control 2 power supplies providing
redundancy.
• High quality stainless steel is used for the
chassis and screws to prevent corrosion in
high humidity environments.
• Each channel is metal coated internally to
provide exceptional EMC screening.
There is a wide choice of input channels for
the S2 mixer. Each channel has a number of
common features:
Assigning an Input Channel to an
Output Bus
Switches at the top of the channel are used
to select the output group routing, to either
Program, Audition, or both output buses.
Selecting the PGM and/or AUD buttons
routes the channel audio to the PGM and/
or AUD mix buses. The buttons illuminate
green to indicate the routing status.
Changing the Input Level
Coarse gain is set using pre-set
potentiometers on the channel circuit
board which allow unbalanced inputs to be
used on mono and stereo line inputs. The
front panel TRIM control allows fine gain of
±12dB.
Changing the Signal Pan, or Balance
The BAL/PAN control is used on mono
channels to pan the mono input signal in
the stereo image and on stereo channels to
balance the stereo image.
CUE/PFL (Pre Fade Listen)
Selecting the CUE/PFL button routes the
pre-fader input signal to the monitoring
system where the signal can be heard via
headphones and/or loudspeakers. The
button lights green when CUE/PFL is active
and a jumper option is available to cancel
the CUE/PFL selection when the fader
is raised. This button works with both a
momentary and latched operation - if held
down, the selection is cancelled on release,
otherwise the button is alternate action.
Fader Start & ON Button Control
The ON button works in conjunction with
the 100mm long-throw carbon fader and
is used to control channel remotes (e.g.
starting a CD player), routing and timers,
etc. When unlit, the channel is off. Flashing
red indicates that the channel has been
selected to ON but not routed to either
PGM or AUD. Steady red indicates that the
channel is ON and “armed”, ready for the
fader to be raised. Raising the fader changes
the illumination to green indicating that
the channel is live. Alternatively, with the
button unlit the fader may be raised and the
channel can be operated simply by selecting
ON. The illumination in this case toggles
between unlit (channel OFF) and green
(channel ON).
either operate manually, be permanently
on, or permanently disabled. Also, the ON
button can be configured to operate in a
number of modes, altering remote start
functions, and the channel ON function
can be controlled remotely by automation
playout systems, such as RCS® or VCS.
Scribble Pad
A scribble pad is provided at the bottom of
the channel for user labelling of the channel
function.
RCS® is a registered trademark of Radio Computer
Systems Inc.
VCS is a wholly-owned subsidiary of SciSys plc.
Programmable Button Settings
To make the S2 modules as flexible as
possible, every button on each channel can
be set to a number of different modes to
aid the use of the mixer and allow for extra
functionality. Each button can be set to
179
Radio Broadcast Mixing Consoles - S2 Input Channels
S2-CMM Mic/Mic Channel
The mic/mic input channel is a dual mono
microphone input with a button switch to
select either Mic 1 or Mic 2.
Each Mic input has jumper settable
phantom power available at +48V and a
high pass filter to remove low frequency
rumbles. When enabled, the LF response
of the microphone is rolled off at 125kHz,
6dB per octave. If the Mic input is used for
the presenter’s mic it can also become the
talkback mic.
Equalisation is fitted as standard on this
channel and is enabled by the EQ button,
S2-CMM Mic/Mic Channel.
providing 10dB cut and boost at HF (6.5kHz)
and LF (100Hz).
The BAL/PAN control operates as follows:
Full anti-clockwise pans the signal to the
left and increases the signal by 3dB (right
channel reduces by 70dB); full clockwise
pans the signal to the right and increases
the signal by 3dB (left channel reduces by
70dB).
There are logic remote input controls for
Mic Cough muting and Reverse Talkback,
together with 2 separate output controls for
Mic Cue lights, momentary or latching.
The remote outputs on the 9 way D-type
plug are fed from NPN opto-isolators.
A balanced line level insert send and return
is available for the Mic input.
Both Mic inputs have a jumper selectable
output to facilitate either Control Room
speaker or Studio speaker muting and the
channel can also be used to control either
one of two separate timer displays.
This is useful for hooking up an outboard
effects unit to be used with the microphone.
Gold plated Neutrik XLR connectors are used
for the audio inputs and outputs.
S2-CML Mic/Line
Channel
The mic/line input channel is a mono input
with a button switch to select either Mic or
Mono Line.
For the Mic input, phantom power at +48V
can be configured. The Mic input has a
jumper selectable high pass filter to remove
low frequency rumbles.
If the Mic input is used for the presenter’s
mic it can also become the talkback mic. The
talkback function will be retained when the
channel input is switched to Line.
Equalisation is fitted as standard on this
S2-CML Mic/Line Channel Rear.
S2-CMM Mic/Mic Rear.
S2-CML Mic/Line Channel.
180
Radio Broadcast Mixing Consoles - S2 Input Channels
channel and is enabled by the EQ button,
providing 10dB cut and boost at HF (6.5kHz)
and LF (100Hz).
and Reverse Talkback. There are output
controls for Mic Cue lights and separate
line remote start/stop controls by fader or
ON button. Both latching and momentary
contacts are catered for. The remote outputs
on the 9 way D-type plug are fed from NPN
opto-isolators.
A balanced line level insert send and
return is available for the Mic input for the
insertion of an effects, or voice, processor
into the mic channel. The send and return
is disabled in Line mode. There are logic
remote input controls for Mic Cough muting
S2-CMM Mic/Mic Channel and S2-CML Mic/Line Channel.
48v
Mic
Line
Mic 2
Mic
Gain
Insert
Line
48v
Line
Trim
VCA
Trim
Routing
EQ
HF/LF
EQ
PAN
PFL
To left
Pgm output
In addition the Line input can be configured
with all the features of the Mic input
when used as a Mic input with an external
microphone amplifier, e.g. for monitor
muting purposes.
Gold plated Neutrik XLR connectors are used
for the audio inputs and outputs.
The S2-CS dual stereo line channel has two
balanced stereo inputs on Neutrik
XLR connectors.
The INP 1/INP 2 button selects which input
is routed through the channel. The button
is illuminated in red to indicate when Input
2 is selected. The operation of the button is
inhibited when the channel is “live”.
To right
Pgm output
VCA
Inse RT
Send
Fader
CPU
To timer
Bus
Inse RT
Return
Mic cue light
Cough/rev t/b
PGM AUD PFL C/FEED T/B
L R L R L R 1 2 1 2
Mutes
The Mic input provides a jumper selectable
output to facilitate either Control Room
speaker or Studio speaker muting and the
channel can also be used to control either
one of two separate timer displays.
S2-CS Dual Stereo
Line Channel &
S2-CSE Dual Stereo
Line Channel with EQ
PGM
Line remotes
T/b enable
Aud
Mic
Line
EQ
Cue
PFL
ON
To meter
Select
S2-CS Dual Stereo Line and S2-CSE Dual Stereo Line with EQ Rear.
S2-CS Dual Stereo Line Channel.
S2-CSE Dual Stereo Line Channel.
181
Radio Broadcast Mixing Consoles - S2 Input Channels
There are separate logic remote output
controls for both of the two inputs providing
start/stop functions by fader, or ON button.
Remotes, etc, are triggered when the fader is
up and the channel ON button shows green.
The start function can be configured to be
either momentary (500mS) or latched for
each input. The remote outputs on the 9 way
D-type plug are fed from NPN opto-isolators.
Continuous momentary start can be enabled
such that when the fader is up and the
channel is on, each press of the ON button
triggers a momentary start.
clockwise shifts the signal to the left and
increases the signal by 6dB (right channel
reduces by 6dB); full clockwise shifts the
signal to the right and increases the signal
by 6dB (left channel reduces by 6dB).
The 100mm VCA fader provides unity gain
when fully open. The channel input signal is
routed to the outputs whenever the fader is
open, the ON button is selected and either
or both of the routing buttons are selected.
The S2-CSE channel is the dual stereo
line channel as above but fitted with
equalisation, providing 10dB cut and boost
at HF (6.5kHz) and LF (100Hz).
Two remote pins can also be configured for
general use as either inputs, outputs, latching, The EQ button places the equalisation in
or momentary and active high or low. Uses for and out of the signal path. The button is
this include channel live indication or specific illuminated in yellow when the EQ is active.
channel function remote control.
The channel can be used to control either
one of two separate timer displays.
The BAL/PAN control adjusts the stereo
balance in the following manner : Full anti-
S2-CSG Stereo Line & Gram Channel.
S2-CSGE Stereo Line & Gram Channel with EQ.
182
S2-CSG Stereo Line & Gram Channel &
S2-CSGE Stereo Line & Gram Channel with EQ
The S2-CSG channel is the dual stereo line
channel fitted with an RIAA input amplifier
on the second input. The balanced stereo
line input is on Neutrik XLR connectors
and the unbalanced RIAA stereo input on
phonos.
Selecting the LINE/GRAM button switches
the channel input between Stereo Line and
RIAA . The button is illuminated in red to
indicate when Gram (RIAA) is selected. The
operation of the button is inhibited when
the channel is “live”.
The channel is used for connecting a
turntable or record deck. The GRAM inputs
have RIAA equalisation suitable for magnetic
pick-up cartridges.
There are separate logic remote output
controls for both of the two inputs
providing start/stop functions by fader,
or ON button. Remotes, etc, are triggered
when the fader is up and the channel ON
S2-CSG Stereo Line & Gram and S2-CSGE Stereo Line & Gram with EQ Rear.
Radio Broadcast Mixing Consoles - S2 Input Channels
button shows green. The start function
can be configured to be either momentary
(500mS) or latched for each input. The
remote outputs on the 9 way D-type plug
are fed from NPN opto-isolators.
Continuous momentary start can be enabled
such that when the fader is up
and the channel is on, each press of the
ON button triggers a momentary start.
Two remote pins can also be configured
for general use as either inputs, outputs,
latching, or momentary and active high
or low. Uses for this include channel live
indication or specific channel function
remote control.
The BAL/PAN control adjusts the stereo
balance in the following manner : Full anticlockwise shifts the signal to the left and
increases the signal by 6dB (right channel
reduces by 6dB); full clockwise shifts the
signal to the right and increases the signal
by 6dB (left channel reduces by 6dB).
The 100mm VCA fader provides unity gain
when fully open. The channel input signal is
routed to the outputs whenever the fader is
open, the ON button is selected and either
or both of the routing buttons are selected.
The S2-CSGE channel is the stereo line
& gram channel as above but fitted with
equalisation, providing 10dB cut and boost
at HF (6.5kHz) and LF (100Hz). The EQ
button places the equalisation in and out of
the signal path. The button is illuminated in
yellow when the EQ is active.
S2-CDS Digital Dual Stereo Channel
The digital dual stereo channel has two 24bit 96kHz digital inputs with an INP 1/INP
2 button switch to select between them.
The button is illuminated in red to indicate
when Input 2 is selected. The operation of
the button is inhibited when the channel
is “live”.
Either input can be configured to be
balanced AES/EBU on standard XLR, or S/
PDIF on phono sockets, selected by internal
jumpers.
An additional jumper option can be used to
decode emphasis when indicated by certain
status bits in the incoming data stream.
The digital signals are converted to analogue
and from this point the channel functions
are the same as the S2-CS Dual Stereo Line
channel with the addition that when the ON
button flashes green, it means that there is
no valid digital input.
The channel can be used to control either
one of two separate timer displays.
S2-CDS Digital Dual Stereo Channel and S2-CDSE Digital Dual Stereo Channel
with EQ and Rear.Rear.
S2-CDS Digital Dual Stereo Channel.
S2-CDSE Digital Dual Stereo Channel with EQ.
183
Radio Broadcast Mixing Consoles - S2 Input Channels
S2-CDSE Digital Dual
Stereo Channel
with EQ
S2-CDAS Dual Stereo Line Channel &
S2-CDASE Dual Stereo Line Channel with EQ
This channel is the digital dual stereo
channel as above but fitted with
equalisation.
The S2-CDAS dual stereo line channel has
one 24-bit 96kHz AES/EBU digital input and
one balanced analogue stereo input, both
on Neutrik XLR connectors.
The HF and LF controls are used to adjust
the equalisation of the signal. The HF
control boosts and cuts the signal by 10dB
at 6.5kHz. The LF control boosts and cuts
the signal by 10dB at 100Hz. The EQ button
places the equalisation in and out of the
signal path and is illuminated yellow when
the EQ is active.
Both S2-CDS and S2-CDSE channels can be
used to control either one of two separate
timer displays.
The INP 1/INP 2 button selects which input
is routed through the channel. The button
is illuminated in red to indicate when Input
2 the balanced analogue source is selected.
The operation of the button is inhibited
when the channel is “live”.
The digital signals are converted to analogue
and from this point the channel functions
are the same as the S2-CS Dual Stereo Line
channel with the addition that when Input 1
is selected and the ON button flashes green,
it means that there is no valid digital input
signal being received.
There are separate logic remote output
controls for both of the two inputs providing
start/stop functions by fader, or ON button.
Remotes, etc, are triggered when the fader
is up and the channel ON button shows
green. The start function can be configured
to be either momentary (500mS) or latched
Input 1 is configured to be the AES/EBU
input on standard XLR. An additional jumper
option can be used to decode emphasis
when indicated by certain status bits in the
incoming data stream.
S2-CDAS Dual Stereo Line Channel and S2-CDASE Dual Stereo Line Channel with
EQ Rear.
S2-CDAS Dual Stereo Line Channel.
S2-CDASE Dual Stereo Line Channel with EQ.
184
Radio Broadcast Mixing Consoles - S2 Input Channels
S2-C6SS 6 Way Stereo Source Select
Channel with EQ
for each input. The remote outputs on the
9 way D-type plug are fed from NPN optoisolators.
Continuous momentary start can be enabled
such that when the fader is up and the
channel is on, each press of the ON button
triggers a momentary start.
Two remote pins can also be configured
for general use as either inputs, outputs,
latching, or momentary and active high
or low. Uses for this include channel live
indication or specific channel function
remote control.
The BAL/PAN control adjusts the stereo
balance in the following manner : Full anticlockwise shifts the signal to the left and
increases the signal by 6dB (right channel
reduces by 6dB); full clockwise shifts the
signal to the right and increases the signal
by 6dB (left channel reduces by 6dB).
The 100mm VCA fader provides unity gain
when fully open. The channel input signal is
routed to the outputs whenever the fader is
open, the ON button is selected and either
or both of the routing buttons are selected.
The S2-CDASE channel is the dual stereo
line channel as above but fitted with
equalisation, providing 10dB cut and boost
at HF (6.5kHz) and LF (100Hz).
The EQ button places the equalisation in
and out of the signal path. The button is
illuminated in yellow when the EQ is active.
The 6 way stereo line source select
channel has 6 balanced stereo inputs on
a 25 way D-type connector selectable by
a 6 way mechanical interlocking switch
bank, numbered 1 - 6. A depressed button
indicates the selected input.
The switch bank also controls 6 sets of
remote outputs allowing each source
to have a set of start/stop remotes. The
remote starts can be set as momentary or
latching. Continuous momentary start can
also be enabled such that when the fader is
up and the channel is on, each press of the
ON button triggers a momentary start.
The channel is fitted with EQ as standard
and other functions are similar to the S2CSE Dual Stereo channel with EQ.
The HF and LF controls are used to adjust
the equalisation of the signal. The HF
control boosts and cuts the signal by 10dB
at 6.5kHz. The LF control boosts and cuts
the signal by 10dB at 100Hz. The EQ button
places the equalisation in and out of the
signal path and is illuminated yellow when
the EQ is active. The channel can be used
to control either one of two separate timer
displays.
The channel can be used to control either
one of two separate timer displays.
S2-C6SS 6 Way Stereo Source Select Channel With EQ and Rear.
S2-C6SS 6 Way Stereo Source Select Channel With EQ.
185
Radio Broadcast Mixing Consoles - S2 Input Channels
S2-CSMM Stereo Mix
Minus Channel
The stereo mix-minus channel has one
balanced stereo line level input and a
balanced stereo mix-minus output, on
XLR connectors. The channel is intended
for use where a remote stereo source,
such as another studio connected via
ISDN, requires a stereo cleanfeed return.
The cleanfeed is generated by the mixminus method from either the PGM or
AUD outputs, depending on the routing
selection.
Selecting the CUE/PFL & T/B button routes
the pre-fader input signal to the monitoring
system where the signal can be heard via
headphones and/or loudspeakers.
In addition, talkback is routed to
the cleanfeed output. This enables
the presenter/technical operator to
communicate with the remote source prior
to going live to air. PFL can be automatically
disabled when the fader
is opened.
The outputs on this channel can be
configured by jumper settings as a mono
sum of mix-minus on the left channel
and continuous talkback on the right
channel (for some ISDN codecs and hybrid
applications).
The fader, or ON button, control a logic
remote output function. The remote
function can be configured to be either
momentary or latched. The remote outputs
on the 9 way D-type plug are fed from NPN
opto-isolators.
Continuous momentary start can be enabled
such that when the fader is up and the
channel is on, each press of the ON button
triggers a momentary start.
Two remote pins can also be configured
for general use as either inputs, outputs,
latching, or momentary and active high
or low. Uses for this include channel live
indication or specific channel function
remote control.
Selecting the PGM and/or AUD buttons
routes the channel audio output to the PGM
and/or AUD mix buses. Selecting the PGM
button also routes the PGM main output
via the mix minus system to the cleanfeed
output. Selecting the AUD button routes the
AUD main output to the mix minus system.
The mix minus is derived from the PGM
output when selecting both PGM and AUD.
Equalisation is fitted as standard on this
channel and operates in the same was as on
the S2-CSE channel.
The channel can be used to control either
one of two separate timer displays.
S2-CSMM Stereo Mix Minus Channel Rear.
S2-CSMM Stereo Mix Minus Channel.
186
Radio Broadcast Mixing Consoles - S2 Input Channels
Routing
Left
Trim
Input 1
Line Left
Right
Trim
Input 1
Line Right
EQ
LINE 1/2
VCA
BAL
1
3
2
B
AES/SPDIF
2
1
3
2
AES/SPDIF Input
Select
1
Aud
Inp 1
inp 2
EQ
C / Feed
Left
Null
C / Feed
Right
Null
Cue
PFL
On
From PGM
Output L
From PGM
Output R
D/A
3
Input 1
AES/EBU
Input 2
AES/EBU
Input 1 A
SPDIF B
Input 2
Input 1 remotes
Input 2 remotes
The telco input channel controls the
connection to a telephone balance unit (or
hybrid). It has one balanced line level mono
input on Neutrik XLR, and one balanced
line level cleanfeed output to return to the
hybrid.
CPU
PGM
A
PFL
Fader
Right
Trim
Input 2
Line Right
To S2-OMC &
S2-OMS CPU
VCA
Left
Trim
Input 2
Line Left
Input 2
RIAA
Option
TRIM
HF/LF
EQ
PGM AUD PFL C/FEED T/B
L R L R L R 1 2 1 2
Mutes
S2-CT Telco Channel
1
3
2
Digital Input Version
Stereo Mix-Minus Version
6 x Stereo
Bal Inputs
6 way Input
And Remote
Output Selector
6 x Remote
Start/Stop
Stereo Selector Version
Left Input Amp
Right Input Amp
Selecting the CUE/PFL & T/B button routes
the pre-fader input signal to the monitoring
system where the signal can be heard
via headphones and/or loudspeakers. In
addition, talkback is automatically routed
back to the caller via the cleanfeed system.
This enables the presenter, or technical
operator, to communicate with the caller
prior to putting the caller live to air. PFL can
be automatically disabled when the fader
is opened.
There is a logic remote output to place the
hybrid “on hold” by using the LINE HOLD
button. The remote output on the 9 way
D-type plug is fed from an NPN opto-isolator
and it can be made momentary or latching.
Selecting the PGM and/or AUD buttons
routes the channel audio output to the
PGM and/or AUD mix buses. The buttons
are illuminated in green to indicate the
routing status. Changing the status of the
PGM button is inhibited when the channel
is “live”.
S2-CSG Stereo Line With Gram (S2-CSGE with EQ), S2-CS Dual Stereo (S2-CSE with EQ), S2-CDS Digital Dual
Stereo (S2-CDSE with EQ), S2-CSMM Stereo Mix Minus and S2-C6SS Stereo Source Select.
S2-CT Telco Input Channel Rear.
S2-CT Telco Input Channel.
187
Selecting the PGM button also routes the
channel to one of the two true cleanfeed
buses (jumper selectable). When selecting
only the AUD button, for example to
record off-line telephone conversations,
a cleanfeed is generated via the channel
mix-minus system. When both PGM and
AUD are selected the channel operates in
the true cleanfeed mode, sending the PGM
signal to the cleanfeed bus.
Equalisation is fitted as standard and is
enabled by the EQ button, providing 10dB
cut and boost at HF (6.5kHz) and LF (100Hz).
The EQ button places the equalisation in
and out of the signal path and is illuminated
yellow when the EQ is active.
Routing
Input
Trim
Input
This blank channel is used to fill in areas of
the mixer where you don’t require an input
or output channel.
S2-CB Blank Channel.
188
HF/LF
EQ
EQ
PFL
PAN
PGM AUD PFL C/FEED T/B
L R L R L R 1 2 1 2
PFLTo
Meter Select
To Talkback
Output
VCA
C/Feed
Output
Hybrid Latch
Fade R
CPU
PGM
Aud
S2-CT Telco Input Channel.
S2-CB Blank Channel
VCA
Trim
Mutes
Radio Broadcast Mixing Consoles - S2 Input Channels
EQ
Cue
T/B
ON
Cleanfeed
Selection
And routing
Null
L From AUD
R Output
Mix Bus
Radio Broadcast Mixing Consoles - S2 Output Channels
S2 Output Channels
There are six different output channels
available, for controlling monitoring in both
a Control Room and separate Studio, with
the two main output channels also having a
master fader option.
The master output channels provide
balanced analogue audio outputs as well
as simultaneous AES/EBU or S/PDIF digital
audio outputs for both PRG and AUD buses.
The analogue mono output can be selected
from PRG or AUD and meter selection is
available to show either the PRG bus, AUD
S2-OMC Control Room Monitor Channel
bus, or to follow the Control Room Monitor
selection.
Both Control Room and Studio Monitor
channels are available for controlling what’s
routed to the presenter’s and guest’s
headphones and monitor speakers.
2 external inputs can also be monitored.
A minimum of 3 channels need to be fitted
into a mixer: channels S2-OMC, S2-ODP (or
S2-ODPF) and S2-ODA (or S2-ODAF) must be
fitted and S2-OMS is optional.
The control room monitor channel is common to every mixer and is used for the
monitoring of various sources on the control room loudspeakers (MONITOR) on a 6.35mm
stereo jack socket and presenter’s headphones (PHONES) on 6.35mm stereo jack sockets.
Front panel control knobs are used to vary the monitor and headphone levels and
headphones can be plugged in on the front or the rear of this channel. The control room
monitor loudspeaker and headphone levels are variable between 0 (cut off) and 10 (max).
A four way electronically interlocking switch
bank selects the source routed to the
speakers and headphones from either of
two external inputs (EXT 1, EXT 2), the PGM,
or AUD output. The buttons illuminate to
show the selected source, PGM and AUD in
green, EXT 1 and EXT 2 in red. The external
inputs can be used for monitoring an off air
signal or another studio output.
An illuminated Mute LED shows when a live
microphone channel in the control room has
muted the speakers, to prevent feedback.
Mute outputs on the remote connector of
the PGM output channel can be used to
remotely illuminate “Mic Live” lights.
AUTO CUE/PFL buttons adjacent to each
level control allow the monitoring of PFL
when an input channel has been selected
to CUE/PFL. In addition, SPLIT CUE/PFL can
be selected to the headphones, which will
place the selected source in mono in one
ear and PFL in mono in the other.
This channel controls the signal conditioning
for the talkback input and output and routes
these signals to and from the talkback bus.
S2-OMC Control Room Monitor Rear.
S2-OMC Control Room Monitor Channel.
189
Radio Broadcast Mixing Consoles - S2 Output Channels
S2-OMS Studio
Monitor Channel
The studio monitor channel is optional
and is used for the monitoring of various
sources on the studio loudspeakers
(MONITOR) on a 6.35mm stereo jack socket
and studio headphones (PHONES) on a
6.35mm stereo jack socket.
A front panel control is used to vary
the monitor level. The studio monitor
loudspeaker level can be variable between
0 (cut off) and 10 (max). The output will
need to be fed to a suitable power amplifier
to drive the loudspeakers. Headphones
A four way electronically interlocking
switch bank selects the source routed
to the speakers and headphones from
either of two external inputs (EXT 1, EXT
2), the PGM, or AUD output. The buttons
illuminate to show the selected source,
PGM and AUD in green, EXT 1 and EXT
2 in red. External inputs can be used for
monitoring an off air signal or another
studio output.
An illuminated Mute LED shows when a
live microphone channel in the studio has
muted the speakers. Mute outputs on
the remote connector of the AUD output
channel can be used to remotely illuminate
“Mic Live” lights.
A separate Studio T/B button is provided to
allow the presenter/engineer to talk to the
studio monitors and/or headphones and
internal jumpers allow this talkback to
replace or dim the selected source.
PGM Aud
O/P O/P
L R L R
Rev T/B
A Global Talkback system can be configured
to allow every contribution point in the
control room and studio to communicate
with each other via their microphone
and headphones.
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can be driven directly from the channel
headphone connector on the rear panel.
Timers
Internal jumpers can be configured to allow
talkback to replace or dim the selected
source, dimming independently on monitor
speakers or headphones.
PFL T/B
O/P O/P
L R 1 2
A Global Talkback system can be configured
to allow every contribution point in the
control room and studio to communicate
with each other via their microphone and
headphones.
PGM
Aud
EXT 1
To S2-CT
Telco
Cleanfeed
Selection
L&R
EXT 2
Auto
Cue
Auto
Cue
Studio
T/B
From Mutes
Bus
Split
Cue
Studio C/Room
190
Cue/PFL Mute/
Dim Talkback
Global T/B
Level
Pres/Studio
Headphones
Rev T/B
Talkback
Output
To Monitor Meters
S2-OMS Studio Monitor Channel and S2-OMC Control Room Monitor Channel.
Green illuminated AUTO CUE/PFL buttons
adjacent to each level control allow the
monitoring of PFL when an input channel
has been selected to CUE/PFL, either to
the monitors or headphones.
S2-OMS Studio Monitor Rear.
S2-OMS Studio Monitor Channel.
Level
CPU
External
Inputs
C/room/
Studio
Monitors
Radio Broadcast Mixing Consoles - S2 Output Channels
S2-ODP Digital PGM Output and S2-ODPF Digital PGM Output with
Master Fader Rear.
The digital output status bits (consumer or
professional), output sample size (16, 20
or 24 bits) and sample rate (automatically
or by internal jumpers from 32 kHz to 96
kHz) can be set. The digital output can be
synchronised from an external input, or
The S2-ODPF channel also has a 100mm
VCA output fader for production use which
provides unity gain when fully open.
Fader Option
From Left
PGM Bus
Analogue PGM
(AUD) Output Left
From Right
PGM Bus
Analogue PGM
(AUD) Output Right
From CPU
Aud
CR
S2-ODP Only MON
From
Mutes Bus
Meter
Select
Analogue Mono
Output
AES/SPDIF
From L&R
PFL Bus
2
CPU
Digital
Audio
Interface
1
Output
Select
3
A/D
PGM
1
3
2
A
B
Meterbridge
3
The illuminated LOCK LED shows that the
digital output is locked to the onboard
master clock, incoming word clock or AES/
EBU or S/PDIF sync signal. The channel
automatically locks to a valid sync clock,
flashing if sync is lost. Synchronisation can
be jumper disabled.
PFL T/B
O/P O/P
L R 1 2
2
from an on-board master clock. There are
4 different sync modes : Master, Auto, Auto
Lock and Slave.
PGM Aud
O/P O/P
L R L R
1
The main power input from the S2-PSU
is on this channel. Button switches at the
top of the channel select the mono output
source from either PGM or AUD. The Mono
compatible output could be used to feed
a mono transmitter or any station output
monitoring system that requires a mono
signal, such as a background music system.
Timers
This channel is common to every mixer and provides a digital and analogue output from
the PGM mix bus. The digital output is available as a balanced AES/EBU signal via a
standard XLR or as S/PDIF on phono sockets. The balanced analogue PGM output and
mono output is on a 15 way D-type connector. This also carries the two sets of latching
relay contacts for the control room mutes.
REV T/B
S2-ODP Digital PGM Output Channel &
S2-ODPF Digital PGM Output Channel with Master Fader
AES/EBU PGM
(Aud) Output
SPDIF PGM
(Aud) Output
SPDIF Sync
AES/EBU Sync
AES/SPDIF
Word Clock
From
Talkback
Bus
S2-ODP Digital PGM Output Channel (S2-ODPF with Master Fader) and S2-ODA Digital AUD Output
Channel (S2-ODAF with Master Fader).
S2-ODP Digital PGM Output Channel.
S2-ODPF Digital PGM Output Channel with Master Fader.
191
Radio Broadcast Mixing Consoles - S2 Output Channels
S2-ODA Digital AUD Output Channel &
S2-ODAF Digital AUD Output Channel with Master Fader
This channel is also common to every
mixer and provides a digital and analogue
output from the AUD mix bus. The digital
output is available as a balanced AES/EBU
signal via a standard XLR or as S/PDIF on
phono sockets. The balanced analogue AUD
outputs are available on a 15 way D-type
connector which also carries the two sets
of latching relay contacts for the studio
mutes.
Button switches at the top of the channel
select the monitoring source to the
meterbridge. Meters in the meterbridge
which are connected to the “Monitor
Meter” position will display the selected
signal from the electronically interlocking
PGM, AUD, or CR MON buttons. The CR
MON signal source is whatever is being
monitored on the presenter’s headphone
on the control room monitor channel, pre
talkback and level control. This signal could
be PGM, AUD, EXT 1, EXT 2, or PFL, as
selected by the presenter.
The digital output status bits (consumer or
professional), output sample size (16, 20
or 24 bits) and sample rate (automatically
or by internal jumpers from 32 kHz to 96
kHz) can be set. The digital output can be
synchronised from an external input, or
from an on-board master clock. There are
4 different sync modes : Master, Auto, Auto
Lock and Slave.
The illuminated LOCK LED shows that the
digital output is locked to the onboard
master clock, incoming word clock or AES/
EBU or S/PDIF compatible sync signal. The
S2-ODA Digital AUD Output Channel.
S2-ODAF Digital AUD Output Channel with Master Fader.
192
channel automatically searches for a sync
signal on the Word Clock, or the selected
digital input, and automatically locks to
a valid sync clock. If sync is lost then the
indicator will flash. Synchronisation can be
jumper disabled.
The S2-ODAF channel also has a 100mm
VCA output fader for production use which
provides unity gain when fully open.
S2-PG Penny & Giles
Conductive Plastic
Fader
The input and output channels of an S2
mixer can optionally be fitted with high
quality Penny & Giles faders.
S2-ODA Digital AUD Output Channel and S2-ODAF Digital AUD Output Channel
with Master Fader Rear.
Radio Broadcast Mixing Consoles - S2 Meterbridge Modules
S2 Meterbridge Modules
PGM Aud
O/P O/P
L R L R
Rev T/B
Timers
In the meterbridge area you can choose
from four styles of metering, a phase meter,
a dual timer, a PFL/Talkback loudspeaker,
2 talkback modules, 3 switch panels and a
range of blanking plates. S2’s meterbridge
modules are freely assignable so that you can
position them exactly where you want them.
The dual meter panels are used for
monitoring console signal levels. Up to
three different meter panels can be housed
in the meterbridge. The meters can be
configured internally to be fed from one of
three signal sources, the selected source
indicated by a LED:
Select
The output of the meter switch
on the AUD output module
which can show PGM, AUD,
or CR MON, which is the
selected monitor source on the
control room monitor module,
(EXT 1, EXT 2, PGM, or AUD)
interrupted by PFL.
PFL T/B
O/P O/P
L R 1 2
From Monitor Output
S2-ML
REV T/B
S2-MT
Dual Timer, Clock And Date Display
CUE/PFL
Talkback
Loudspeaker
CUE/PFL REV T/B
St ar t
St op
Reset
Mode
St ar t
S t op
Reset
Mode
Program PGM output which can
optionally be interrupted
by PFL.
PFL
The output of the PFL bus.
S2 Without
Meterbridge
The S2 is available without a meterbridge.
This does affect some of the features
available on the mixer. Contact sales@
sonifex.co.uk for further information and
pricing.
In the meterbridge area you can choose
from four styles of metering, a phase meter,
a dual timer, a PFL/Talkback loudspeaker, 2
talkback modules and a range of blanking
plates. S2’s meterbridge modules are freely
assignable so that you can position them
exactly where you want them.
To cleanfeed
Left (S2-CSMM)
PGM Meters
Monitor Meters
To Cleanfeed
Right (S2-CSMM)
PFL Meters
Phase Meters
S2-MPPM Dual PPM Meter Panel
S2-MPPT True Dual PPM Meter Panel
S2-MVU Dual VU Meter Panel
S2-ML53 Dual LED Bar Graph Meter
S2-MPH PHase Meter Panel
S2-MPPM/T Meterbridge PPM Panel, S2-MVU Meterbridge VU Meter Panel, S2-ML53 Meterbridge LED Meter Panel, S2-MPH Meterbridge Phase Meter Panel, S2MTBS Station Master and S2-MTB6 6 Way Talkback Panels, S2-MT Meterbridge Dual Timer Panel and S2-ML Meterbridge Loudspeaker Monitor and Talkback Panel.
193
Radio Broadcast Mixing Consoles - S2 Meterbridge Modules
S2-MPPM Meterbridge
PPM Meter Panel
The S2-MPPM panel has two fast-reading
moving-coil meters with PPM-style scale.
S2-MVU Meterbridge
VU Meter Panel
The PPMs have a 1-7 scale and are configured
such that a 1kHz signal, at 0dB at the PGM
output, will indicate a meter reading of 4.
Each mark on the PPM scale indicates a 4dB
The S2-MVU two moving coil VU meters are
change in signal level.
S2-ML53 Meterbridge
LED Meter Panel
S2-MPH Meterbridge
Phase Meter Panel
The LED meter consists of 53 LEDs showing
both VU and peak representation. Both PPM
and VU scales are shown, one on each side
of the LED bar-graph.
The S2-MPH is a phase meter which
operates on the selected source to the
meters. 5 LED indicators show the phase
angle in 45 degree steps from 0 (in-phase) to
180 (out of phase).
A separate phase meter can be linked to
each meter in the meterbridge.
194
configured such that a 1kHz signal, at +4dBu
at the PGM output, will indicate a meter
reading of 0VU.
Radio Broadcast Mixing Consoles - S2 Meterbridge Modules
S2-MT Meterbridge
Dual Timer Panel
Each of the dual timers can be used for
timing events triggered by Timer 1, Timer 2,
or the Mic fader open signal. In addition the
upper timer is used for displaying the time
of day and the lower timer for displaying
the date. The illumination pattern of the red
LEDs indicates the timer display mode.
The date and time can be synchronised to
a very accurate internal clock or optionally
from an external source, MSF, DCF, SMPTE,
or RS232 time code string.
S2-ML Meterbridge
Loudspeaker Monitor
Panel
The S2-ML speaker is used for monitoring
PFL and reverse talkback in the control room
directly from the mixer. Two control knobs
are provided for adjusting the levels of the
PFL and Talkback signals from cut-off at 0
to unity gain at 10. The speaker is muted
automatically when the control room mute
is active, to prevent feedback.
S2-MSB1 S2
Meterbridge
Switch Panel
With 1 Button
S2-M6SS Meterbridge
6 Way Source Select
Panel
This is a meterbridge panel,
1 channel wide, with 1
button which can be used
for bespoke control of
the S2, or for your own
purposes, e.g. equipment
control.
Contact Sonifex with your particular mixer
control requirements.
S2-MSB3 S2
Meterbridge Switch
Panel With 3 Buttons
This is a meterbridge panel,
1 channel wide, with 3
buttons which can be
used for bespoke control
of the S2, or for your own
purposes, e.g. equipment
control, or for transmission
control linked to an RB-OA3
on-air switcher.
Contact Sonifex with your
particular mixer control
requirements.
The meterbridge source selector panel
produces a stereo analogue audio output
from 6 selectable stereo analogue sources,
which can be connected to a stereo input
channel within the mixer, or the EXT 1
and EXT 2 monitor inputs, to provide up to
12 external monitor inputs. There are
6 illuminated push buttons, which select and
indicate the current channel selection. The 6
stereo sources are connected on the rear of
the panel via a connector, which uses exactly
the same pin configuration as the stereo
audio source input connector on the
S2-C6SS channel.
195
Radio Broadcast Mixing Consoles - S2 Meterbridge Modules
S2-MTBS Meterbridge S2-MTB6 Meterbridge Alternative Button
6 Way Talkback Panel Text
Station Master
For meterbridge panels, the buttons can be
Talkback Panel
supplied with different printed script. A few
This is used for interfacing with a Sonifex
Station Master studio switcher and talkback
router, or the RB-OA3 on-air switcher, and
has buttons for talkback, Offer and Accept
switching and profanity delay control.
examples are shown here, but for a full list,
please go to the Sonifex website:
www.sonifex.co.uk/s2/s2-buttons.shtml
This is used for communicating with up to
6 other locations, studios or mixers, and
with the Sonifex TB-6D and TB-6R talkback
intercoms. While a button is pressed,
the switch is illuminated and the talkback
is active. The buttons work with both a
momentary and latched operation - if held
down, the selection is cancelled on release.
Otherwise the button is alternate action.
196
S2-MB1-5 Meterbridge
Blanking Plates 1-5
Meterbridge blanking plates are available
in channel widths from 1 to 5 inclusive and
are used to fill areas in the meterbridge not
occupied by active modules.
Radio Broadcast Mixing Consoles - S2 Chassis
Chassis Sizes
Model No.
S2 Chassis Sizes
The S2 chassis is available in 5 channel width sections, allowing 5, 10, 15, 20, 25 and 30
channel width mixers. This means S2 can be used for small newsrooms or large on-air
situations.
Number of Channels
S2-05
5
S2-10
10
S2-15
15
S2-20
20
S2-25
25
S2-30
30
S2-05 Chassis
S2-15 Chassis
S2-25 Chassis
Chassis with 5 channel width sections.
Chassis with 15 channel width sections.
Chassis with 25 channel width sections.
S2-10 Chassis
S2-20 Chassis
S2-30 Chassis
Chassis with 10 channel width sections.
Chassis with 20 channel width sections.
Chassis with 30 channel width sections.
197
Radio Broadcast Mixing Consoles - S2
S2-7SS Script Space
S2-10SS Script Space
The script space occupies an area of 7
channel widths, and is designed to hold
documents or scripts for the mixer operator
when desk space is at a premium.
The S2-7SS Script Space is 266mm wide x
390mm deep.
This script space is 10 channels wide and
is large enough for a small keyboard.
The S2-10SS Script Space is 380mm wide x
390mm deep.
Technical Specification For S2
Input/Output Impedances
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Mixer Width
Type
(cm)
Width
(inches)
Depth
(cm)
Depth
(inches)
Height
(cm)
Height
(inches)
S2-30 137cm
53.9”
70cm
27.6”
45cm
17.7”
36kg
Gross
Weight
(lbs)
Nett
Weight
(kg)
Nett
Weight
(lbs)
79lbs
32kg
70lbs
S2-25 117cm
46.0”
70cm
27.6”
45cm
17.7”
35kg
77lbs
31kg
68lbs
S2-20 100cm
39.4”
70cm
27.6”
45cm
17.7”
33kg
73lbs
29kg
64lbs
S2-15
80cm
31.5”
70cm
27.6”
45cm
17.7”
27kg
59lbs
24kg
53lbs
S2-10
60cm
23.6”
70cm
27.6”
45cm
17.7”
25kg
55lbs
22kg
48lbs
S2-05
60cm
23.6”
70cm
27.6”
45cm
17.7”
22kg
48lbs
20kg
44lbs
198
Stereo Inputs (unity -86dB
gain, one channel routed):
Stereo Inputs (unity -83dB
gain, two channels routed):
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Distortion
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ϭϭϬɏ
Total Harmonic
Distortion:
0.015% at 1kHz, 0dB
0.025% at 10kHz, 0dB
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Crosstalk
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Inter-channel:
< -90dBu
Input/Output Gain Range
Stereo:
-90dBu at 1kHz
Mic Input:
Preset pot +13dB to +66dB ref
-50dBu, TRIM pot ±12dB
Equalisation
Mono Line Input:
Preset pot -6dB to +10dB ref
0dBu, TRIM pot ±12dB
HF Shelving at 6.5kHz: ±7dB
Stereo Line Input:
Preset pot -6dB to +10dB ref
0dBu, TRIM pot ±12dB
Pan Range:
Telco Input:
Preset pot -6dB to +10dB ref
0dBu, TRIM pot ±12dB
Pot position: Fully clockwise,
centre, fully anti-clockwise;
Left: Off, 0dB, +3dB;
Right: +3dB, 0dB, Off
respectively.
±6dB
LF Shelving at 100Hz: ±7dB
Range
Telco Output:
Preset pot -6dB to +4dB ref 0dBu
Mix Minus Input:
Preset pot -6dB to +10dB ref
0dBu, TRIM pot ±12dB
Balance Range:
Mix Minus Output:
Preset pot -3dB to +3dB ref 0dBu
Mic Input:
Digital Input:
0dBFS = +12dBu on input;
TRIM pot ±12dB allowing 0dBu
to +24dBu
Digital I/O
Digital Output:
0dBFS = +18dBu
Mic Input:
Gross
Weight
(kg)
-89dB
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Frequency Response
S2 Mixer Weights and Boxed Dimensions
Stereo Inputs (unity
gain, no routing):
40Hz to 20kHz, -1dB,+0dB
(-3dB at 130Hz with HPF in)
Line Inputs:
20Hz to 20kHz, - 0.5dB,+0dB
RIAA Input:
30Hz to 16kHz ±1.5dB RIAA
equalised
Noise (20Hz to 20kHz)
Common Mode Rejection Ratio
Sync Input Sample
Rate:
30kHz - 100kHz
Output Sample Rates 32kHz, 44.1kHz, 48kHz, & 96kHz
(Using Onboard Clock):
(Using Sync Input):
30kHz - 100kHz
Output Sample Width: 16, 20, 24 bit
Output
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Output Load:
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recommended
+26dBu balanced
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Maximum Output
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Stereo Inputs (fader
down, no routing):
-89dB ref 0dB
Power
Stereo Inputs (fader -89dB
down, one channel routed):
> 100dB at 70dB gain
Power (S2-PSU):
Filtered IEC, switchable 115V,
230V, fused, 210W max.
Radio Broadcast Mixing Consoles - S2
S2 Mixer Placement In Furniture
276mm
40mm
Woodwork
Rear Edge
Solutions Single Mixer Furniture Package Showing
an S2-25 Mixer.
180mm
506mm
10mm
7°
196mm S2-5
387mm S2-10
117mm
23mm
577mm S2-15
768mm S2-20
958mm S2-25
1149mm S2-30
S2 Placement in Cut-Out Viewed from Above.
Woodwork
Front Edge
Mounting Holes 5mm Diameter
505mm
521mm 565mm
S2 Mixer Viewed from Side Profile.
199
Radio Broadcast Mixing Consoles - S2 Power Supply
S2-PSU Power Supply
S2-PSU Front Panel.
The S2-PSU is a 1U high rack-mount unit,
which supplies power to the entire range
of S2 mixers. A lead with a special 9 pin
D-Type socket on each end is used to
connect the power supply to the S2-ODP
PGM output channel on the mixer.
LEDs on the front of the unit indicate
whether the power to the voltage rails is
being supplied correctly.
Dimensions (S2-PSU)
(Raw):
48cm (W) x 24.3cm (D) x 4.4cm (H)
19” (W) x 10” (D) x 3.5” (H)
(Boxed):
54cm (W) x 41cm (D) x 16cm (H)
21.3” (W) x 16.1” (D) x 6.3” (H)
Weight (S2-PSU)
Nett: 6kg
Gross: 7.8kg
Nett: 13.2lbs Gross: 17lbs
200
S2-PSU Rear Panel.
S2-BI Bus Interlink
Cable
This is used to connect two S2 chassis so
that they can function as one mixer.
Note that a maximum total of 30 channels is
allowed in a split mixer configuration.
Radio Broadcast Mixing Consoles - S2 Power Supply
S2-PSUS Dual Power Supply Switcher
S2-PSUS Front Panel.
The S2-PSUS is a passive power switcher
which takes the power feeds from
2 x S2-PSU units and switches between
them in the event of failure. Two trailing
leads 0.5m in length connect to 2 x S2-PSU
units. With LED failure indicators and GPI
alarms, the S2-PSUS is the perfect dual
redundant power supply module.
S2-PSUS Back Panel.
Dimensions (S2-PSUS)
(Raw):
48cm (W) x 23cm (D) x 4.4cm (H)
19” (W) x 9” (D) x 1.7” (H)
(Boxed):
55cm (W) x 39.3cm (D) x 8.5cm (H)
21.6” (W) x 15.5” (D) x 3.4” (H)
Weight (S2-PSUS)
Nett: 1.58kg Gross: 2kg
Nett: 3.5lbs Gross: 4.4lbs
201
www.sonifex.co.uk
7-1HſEG
5QPKHGZ.VF
61 Station Road, Irthlingborough,
Northants, NN9 5QE, UK
Tel: +44 (0) 1933 650700
Fax: +44 (0) 1933 650726
Email: sales@sonifex.co.uk
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Unit 12/6 Leighton Place, Hornsby,
New South Wales 2077, Australia
Tel: +61 (2) 9987 0499
Fax: +61 (2) 9476 4950
Email: sales@innescorp.com.au
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