Monitor Audio IWA-250 El Manual Del Propietario página 7

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(7a). 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.
8.
Mains Power Switch
The mains power switch should be switched to the 'Off' position when the IWA-250 will not be
used for extended periods. The switch must be in the 'On' position for the subwoofer to function.
9.
Power LED
The LED indicates whether the unit is in standby mode or operational. It will be illuminated red
when in standby, and green when operational.
10. EQ 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.
11. Cabinet
Select the appropriate position for if a cabinet is being used or not.
12. 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.
13. Power Mode Switch
With the switch in the 'On' position, the amplifier is permanently switched on under all
conditions. In the 'Auto' position, the amplifier 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. Place it in the 'Trigger'
position when using the 12v trigger from the AV amp to the IWA-250
Additional Notes on the Auto On Function
When using the auto on feature, the amplifier will "lock" onto the input it was activated by. In
most cases, when using either stereo, LFE or balanced input connection this will not matter.
However, if using more than one connections, you will not be able to toggle between inputs
until the amplifier 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.
14. Crossover Frequency Control
The crossover frequency control only operates when using the RCA stereo input (2) and is used
to set the upper frequency limit (low pass) of the amplifier. The crossover control should be set
in accordance with the size or bass output of the main/satellite speakers. .
15. 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 approx 10 o'clock 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.
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