Monitor Audio SILVER RXW-12 - Manual (Page 5)

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amp panel & Controls
monitoraudio.co.uk 7 Silver RXW-12 6
1. Stand-by / On Indicator
The LED indicates whether the unit is in stand-by mode or operational. It will be illuminated
red when in stand-by, and green when operational
2. Crossover Frequency Control
The crossover frequency control only operates when the low pass filter switch (refer to section 3.)
is in the ‘In’ position. This control feature is used to set the upper frequency limit (low pass) of
the RXW-12. The crossover control should be set in accordance with the size or bass output
of the main/satellite speakers. Refer to the chart below as a guide to setting the crossover
frequency control to the optimum position. Much will depend on the correct low frequency
response of the main speakers and their position in your room. Experimentation is advisable.
3. Low Pass Filter Switch
When set to the ‘In’ position the crossover frequency control (section 2) is activated and can be
adjusted from 40Hz to 120Hz using the crossover frequency control. Use this position when
the source amplifier does not have a dedicated sub woofer/ LFE output, such as a stereo
2-channel amplifier. If the amplifier (stereo or AV) has a dedicated LFE or subwoofer output, the
Low Pass Filter Switch should be set to the ‘Out’ position. The low pass filter will then be set
by the source amplifier’s internal filter. This should be set in accordance with the amplifier or AV
processor user guide, with the frequency set in accordance with the above table.
4. Phase Control Switch
The Phase Control is used to synchronise any delay between the RXW-12 and main/satellite
speakers. When the RXW-12 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 advisable 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.
5. Power Mode Switch with On-Auto-Off Facility
The Power Mode Switch has three positions: ‘On’–‘Auto’–‘Off’. 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 and will remain on
for a period of time until no signal is received, the RXW-12 will then switch into standby mode
until a signal is received once more. When the switch is in the ‘Off’ position the subwoofer
will not function.
6. 12 Volt Trigger Input ~ Centre Pin = +12Vdc
For external power control from AV amplifier/ receiver to the RXW-12. Monitor Audio recommend
using this function and a lead is supplied. This 12 volt signal is supplied by the AV amp/receiver
and tells the RXW-12 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 Power
Mode Switch (5) can be in any of the three positions, for it to function correctly.
Type of Main Speaker Monitor Audio Product
Crossover
Control Setting
Large floor-standing speaker PL200/300; GS20/60; RX6/8; BR6 40-60 Hz
Small floor-standing speaker BR5; R270 HD 50-70Hz
Large stand-mount/ bookshelf speaker PL100; GS10; RX2 50-80 Hz
Small stand-mount/ bookshelf speaker RX1; BR1/2; R225 HD /250 HD ;R one HD 60-90 Hz
Small satellite speaker R45 HD /90 HD /180 HD 80-120 Hz
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