Monitor Audio RS W12 - Manual (Page 8)

8
© Monitor Audio 2005 RS W12 Rev 1
1. Stand-by / On Indicator
The LED indicates whether the unit is in stand-by mode or 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. The crossover frequency control is used
to set the upper frequency limit (low pass) of the RS W12. 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.
Type of main speaker Crossover control setting
Large floor-standing speaker 40-60 Hz
Small floor-standing speaker 50-70Hz
Large stand-mount/ bookshelf speaker 50-80 Hz
Small stand-mount/ bookshelf speaker 60-90 Hz
Small satellite speaker 80-160 Hz
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. When set to the ‘In’ position it can be used with an amplifier that does
not have a dedicated sub-woofer or LFE output, such as a stereo 2-channel
amplifier. If the amplifier or A/V processor has a dedicated LFE or sub-woofer
output, the Low pass filter switch should be set to the ‘Out’ position. The low
pass filter will then be set by the amplifier internal filter. This should be set in
accordance with the amplifier or A/V processor user guide.
4. Phase Control Switch
The Phase Control is used to synchronise any delay between the RS W12 and
main/satellite speakers. When the RS W12 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 in
order to do this easily. 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 A/V processor or A/V
receiver amplifier.