Monitor Audio IWA-250 Owner's Manual
IWA-250
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Amp Panel & Controls
1. 12 Volt Trigger Input ~ Centre Pin = +12Vdc
For external power control from AV amplifier/ receiver to the IWA-250. 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 IWA-250 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.
recommend using this function and a lead is supplied. A 12 volt signal is supplied by the
AV amp/receiver and tells the IWA-250 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.
2. RCA Stereo Inputs (Left & Right)
This is the method of signal input when using a stereo amplifier system, connection can be provided
by a pair of high-quality signal cables from the pre-out section of an amplifier. The crossover frequency
will need to be set if using this method of connection. If using the IWA-250 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.
by a pair of high-quality signal cables from the pre-out section of an amplifier. The crossover frequency
will need to be set if using this method of connection. If using the IWA-250 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.
3. LFE Input (RCA Type)
This input is to be used when connecting the amplifier 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.
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.
4. Balanced Level Input
The balanced input is for use when connecting to a high end amplifier that has balanced
outputs and also advisable when running long runs of cable to avoid interference.
outputs and also advisable when running long runs of cable to avoid interference.
5. Speaker
Output
The speaker connections are a mono output, so even if feeding with a stereo signal the outputs
on the speaker connections will be the same. It is not possible to bridge the outputs, so if using
a single subwoofer, connect to EITHER the left hand pair of terminals or the right hand pair.
on the speaker connections will be the same. It is not possible to bridge the outputs, so if using
a single subwoofer, connect to EITHER the left hand pair of terminals or the right hand pair.
6. 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.
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.
7. IEC Mains Power Connector/ Fuse Location
The amplifier 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
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
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7a
TRIGGER
12V DC
+
+
-
-
BALANCED LFE INPUT
STEREO INPUT
LFE IN
R
L
110-120V~
220-240V~
SPEAKER OUTPUTS
AC110-120V~50-60Hz
AC220-240V~50-60Hz
AC220-240V~50-60Hz
200 W
FUSE: 110-120VAC
T4.0AL/250VAC
FUSE: 220-240VAC
T4.0AL/250VAC
DESIGNED IN THE UK, MADE IN CHINA.
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