Monitor | Radius 380 | User guide | Monitor Radius 380 User guide

Rad i u s 250
Rad i u s 270
Ra d i u s 380
Ra d i u s 390
owners manual
Thank you for your purchase of the Radius 380 or 390 subwoofer, which has been designed and
constructed using quality systems and materials to provide years of enjoyment, reliability and pride
of ownership.
Music is and should be a natural enhancement of life. It stimulates the imagination, changes your
mood, helps you relax, and provides endless hours of entertainment. At Monitor Audio we pride
ourselves in attempting to make the listening experience as close as possible to the original ‘music’
production.
Please read through this manual to familiarise yourself with any safety advice and how to set up
your subwoofer to achieve the very best listening experience.
Please retain this manual for future reference.
Unpacking
Care must be taken at all times when handling the subwoofer due to the weight
and the construction of the product. We recommend a two-person lift wherever
appropriate.
The mains power cord(s) and 12 volt trigger lead are contained separately in the packaging and
should be removed prior to unpacking the product.
To remove the subwoofer from its carton place some protective material on the floor and having
removed any loose items (mains lead(s) and 12 volt trigger lead) from the top of the packaging,
carefully invert the carton. Also see the icons printed on the carton. Gradually pull the carton
upwards to expose the subwoofer, which will be presented with its base uppermost. Remove fixing
tape from bag and expose the base/cabinet.
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Introduction
Positioning/Initial Set Up
Leave the subwoofer unplugged from the mains until the installation procedure
is completed.
The subwoofer should now be sited in the most suitable position, preferably not directly in the
corner of a room as this may cause excessive bass boom. Once a desirable position is achieved it is
important to check if the cables are long enough to reach comfortably without being under tension.
The optimal control settings will depend entirely on your system configuration, room environment
and personal tastes. However, for initial trials set the controls as follows:
Volume Control Frequency Control Bass Control
Phase Control Mode Switch 12v Trigger (optional) Input Should be set to approximately 10 o’clock.
Should be set to the approximate frequency depending on
main speakers when using the L & R Line Level Inputs.
Should be set to Movies when connecting to an AV receiver
or Music when connecting to a stereo amplifier.
Should be set to zero degrees.
Should be set to ‘on’.
Do not connect at this stage.
Connections from the amplifier can be made at this stage before the power is connected to the subwoofer. Refer to items 1 and 2 on page 3.
Never connect or disconnect the RCA input/ output leads with the subwoofer
switched on.
Set Up
Once the input cables are connected and the controls are set in accordance with the initial set-up
procedure above, the subwoofer can be connected to the mains power supply and switched on
at the mains power switch.
Do not play any music or movies at this stage as the auto set up of the AV amp (if using one) will
need to be run. If your amp has an auto set up procedure, run this now. If you do not have an
auto set up or are using a stereo amp connected to the left and right inputs, set the crossover in
accordance with your main speakers. If using the Radius Series speakers this should be around
80Hz, but experimentation is advisable.
When the auto set up is complete, check that the subwoofer settings on the AV amp are correct.
The crossover frequency should be roughly 80Hz and the level should be no more/ less than +/3dB. If not we would suggest adjusting accordingly.
Now play a variety of music/ film excerpts that you are familiar with and adjust the level of the
subwoofer to a point where it integrates with the rest of the system and to where you are happy.
The volume of the amp can then be adjusted to an average listening level once you are sure
everything is working correctly to double check your sub woofer level settings.
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Radius
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED PERSONNEL.
ATTENTION: AFIN DE RÉDUIRE TOUT RISQUE DE CHOC
ÉLECTRIQUE, NE PAS RETIRER LE COUVERCLE
(OU CAPOT ARRIERE), NE CONTIENT PAS DE PIECES
REPARABLES PAR L’UTILISATEUR CONFIER TOUT
ENTRETIEN À UN PERSONNEL QUALIFIÉ.
4
3
INPUT
2
TRIGGER
LFE
R
1
5
FREQUENCY
.
.
BASS
IMPACT
.
.
. .
.
220 - 240V~
6
VOLUME
.
.
12V
ENGLISH
Amp Panel & Controls
.
50 Hz
.
120 Hz MIN
7
8
PHASE
MODE
AUTO
MUSIC
MOVIE
ON
.
9
MAX
ON
10
AC110-120V ~ 50-60Hz
AC220-240V ~ 50-60Hz
200 W
FUSE: 110-120VAC T6.3AL/250VAC
FUSE: 220-240VAC T3.15AL/250VAC
L
110 - 120V~
10a
OFF
POWER
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Intertek
3100294
DESIGNED IN THE UK, MADE IN CHINA
Notes:
1. RCA Stereo Inputs (Left & Right)
1. ICONS/TEXT TO BE SILKSCREENED
This is the method of signal input when using a stereo amplifier
system,
connection can be
IN WHITE
- RAL 9003
2. IMAGE
FOR REFERENCE
provided by a pair of high-quality signal cables from the pre-out
section
of an PURPOSES
amplifier.ONLY.
The
crossover frequency will need to be set if using this method of connection. If using the Radius
Series speakers set the crossover dial to approximately 80Hz. This may vary depending on
room and tastes. Note:- cable lengths should not exceed 10 metres to avoid interference
from other electrical appliances.
2. LFE Input (RCA Type)
This input is to be used when connecting the subwoofer to an AV amplifier/ receiver. When using
the LFE input, the crossover frequency dial is not used. This is due to the crossover function
being controlled by the AV amplifier/ processor to which it is connected.
3. 12 Volt Trigger Input ~ Centre Pin = +12Vdc
For external power control from AV amplifier/ receiver to the Radius. Monitor Audio recommend
using this function and a lead is supplied. A 12 volt signal is supplied by the AV amp/receiver
and tells the Radius to turn on from standby mode. This allows a more accurately controlled
auto on/off function, and is far more energy efficient. When using the 12v trigger, the Mode
Switch (8) can be in any position, for it to function correctly.
4. Crossover Frequency Control
The crossover frequency control only operates when using the RCA stereo input (1) and is used
to set the upper frequency limit (low pass) of the subwoofer. The crossover control should be
set in accordance with the size or bass output of the main/satellite speakers. When using the
Radius Series speakers, set this to around 80Hz. Experimentation is advisable.
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5. Volume Control
This control allows the level or volume to be adjusted in order to achieve a balanced overall
sound. To use this facility you will need to play a selection of familiar music or film excerpts.
Start with the volume at minimum and increase the level control until a balanced sound is
established. If using an AV processor or AV receiver amplifier, the system can be adjusted
by the test tone function within the set-up features. (Refer to the set up section in the AV
processor or AV receiver amplifier user guide.) When the subwoofer is correctly set-up, you
should not be able to identify its location easily in the room.
6. Bass Switch
This switch tailors the bass response of the subwoofer to your tastes. There are three settings:
Music, Movies and Impact. Movie mode provides a relatively flat response down to 35Hz.
Music mode is -2dB down on Movie mode but goes lower, all the way down to 30Hz. Impact
mode is +3dB up on Movie mode and comfortably goes down to 40Hz.
7. Phase Control Switch
The Phase Control is used to synchronise any delay between the subwoofer and main/satellite
speakers. When the subwoofer is in phase with the main/satellite speakers the sound should
be full bodied. Sit in a normal listening position whilst adjusting the phase switch. Help from
another person may be required. When set correctly the location of the subwoofer should be
almost undetectable. Experimentation is advised in order to achieve optimum results. However
it should be noted that in most cases the phase control switch should be set to 0 degrees,
especially when using a digital AV processor or AV receiver amplifier.
8. Power Mode Switch with On-Auto Facility
With the switch in the ‘On’ position, the subwoofer is permanently switched on under all
conditions. In the ‘Auto’ position the subwoofer will automatically switch on when an input
signal is received. It will remain on for a period of 15 minutes without receiving a signal before
switching into standby mode until a signal is received once more.
Additional Notes on the Auto On Function
When using the auto on feature, the subwoofer we “lock” onto the input it was activated by. In
most cases, when using either stereo or LFE input connection this will not matter. However, if
using both stereo and LFE connections, you will not be able to toggle between inputs until the
subwoofer has gone into standby mode. This can be done manually by turning it off and on
again, or by letting it time out (15 mintues) before changing the inputs over.
9. Mains Power Switch
The Mains Power Switch should be switched to the ‘Off’ position when the subwoofer is
unused for extended periods. The switch must be in the ‘On’ position for the subwoofer to
function.
WARNING: Due to the mains switch being located on the rear panel, the apparatus must be
located in the open area with no obstructions to access the mains switch.
10. IEC Mains Power Connector/ Fuse Location
The subwoofer is supplied with a two-pin mains input socket for connection to the mains
supply. Use ONLY the appropriate IEC mains lead provided with the product. Also fitted is an
external mains fuse. If this fuse blows during operation a spare fuse is provided within the fuse
holder for replacement. If you wish to change the fuse, you can do this by removing the IEC
mains lead and carefully levering out the original fuse from its holder below the IEC mains input
socket (10a). If the fuse blows again it is advisable to seek help from an authorised service
agent. DO NOT attempt to re-fit a further fuse as this could result in serious damage to the
amplifier unit.
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Radius
The LED on the top of the cabinet indicates whether the unit is in standby mode or operational. It
will be illuminated red when in standby, and green when operational.
Specification
Radius 380
System Format
Radius 390
Active sub-woofer system – Auxiliary Bass Radiator (ABR)
loading. 18mm MDF cabinet (CARB2 approved)
Low Frequency Limit
Upper Frequency Limit
Amplifier Power Output
Amplifier Classification
Bass EQ Switch
30Hz (-6dB)
Variable 40 – 120 Hz @ 24dB/Octave
140W @ < 1% THD+N
200 Watts @ 1% THD+N
Class D amplifier with Switch mode power supply (SMPSU)
Music/ Movie/ Impact
Phase Control
0 & 180 degrees
Auto Sensing
Line Level >3.5mV
Input Level Requirements
Driver Compliment
Standby after approximately 15 minutes if no signal sensed
1 x 8” (200mm) C-CAM® long
throw driver. 1 x 8” (200mm)
Auxiliary bass radiator
Input Impedance
Mains Input Voltage
Dimensions (H x W x D)
(Including amp & feet)
Connections
12v Trigger Input
Power Consumption
Weight (unpacked
1 x 10” (250mm) C-CAM® long
throw driver. 1 x 10” (250mm)
Auxiliary bass radiator
> 20K Ohms
AC 110 - 120 V ~ 50/60Hz
AC 220 - 240 V ~ 50/60Hz
(Factory Region Preset)
308 x 290 x 305mm
12 1/8 x 11 7/16 x 12 Inch
348 x 330 x 345mm
13 11/16 x 13 x 12 9/16 Inch
Stereo RCA in, LFE in, 12v Trigger in (3.5mm mono mini-jack)
5 - 12v via 3.5mm mono mini-jack socket
Standby: < 0.5W (ErP approved)
Typical Idle: < 10W
Max Rated: 200W
10.16Kg (22lb 6oz)
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13.76Kg (30lb 4oz)
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11. Mains Voltage Selector
This is factory set to your country’s mains voltage specification. Do not attempt to adjust this
as this may lead to permanent damage to the product and even the risk of fire. There is a clear
plastic cover over the selector to prevent accidental adjustment.
Trouble Shooting
Should you experience any technical, or set-up problems with your subwoofer please check the
Trouble Shooting guide below:
My subwoofer will not turn on/ no power.
•
Is the LED illuminated on the top of the unit? If not, check your mains lead is properly connected
both at the subwoofer and at the mains outlet. Also check the fuse of the amplifier and mains
plug (where fitted).
•
Is the LED red? If so, you have power going to the unit. It could be that there is no signal, or
the 12v trigger is connected and the source not turned on (see below).
•
Have you got the 12v trigger connected? If so, the subwoofer will not power up until the
source is turned on.
•
Is the unit receiving a signal (12v trigger not being used)? Is the Power Mode Switch in Auto or
On position, and signal source turned on? Try adjusting the volume level of the source.
If it still does not turn on/ power up, please contact your local dealer/ distributor or Monitor Audio
immediately.
No sound from subwoofer.
•
Is the LED on the top red or green? If it is red, then the unit hasn’t actually turned on. See
above suggestions. If it is green, then your unit is powered up and turned on. Check further
suggestions below.
•
Are the signal leads connected correctly? Check these. If possible, check by replacing with
a second, working set.
•
Is the volume level just very low? Try turning the volume on the source up a bit more.
•
Have you tried switching input’s? If changing from LFE to Stereo (or vice versa), you need to
power down the sub woofer first. It will stay “locked” onto the input that activates it.
If it still does not output a signal, please contact your local dealer/ distributor or Monitor Audio
immediately.
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Owner Information
Product Details
Model …………………………………..
Product Serial No …………………………………..
Date of Purchase ……………………………………
Dealer Details
Dealer Name …………………………………………………………………………………………….
Address …………………………………………………………………………………………………
Town, Post code, Country …………………………………………………………………………….
e-mail address …………………………………………………………………………………………
Monitor Audio reserves the right to alter specifications without notice.
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m o n i t o r a u d i o . c o . u k
Monitor Audio Ltd.
24 Brook Road
Rayleigh, Essex
SS6 7XJ
England
Tel: +44 (0)1268 740580
Fax: +44 (0)1268 740589
Email: info@monitoraudio.co.uk
Web: www.monitoraudio.com
Designed in the United Kingdom
Version 1. 2013
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