ESI SW10K - Manual (Page 7)

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3) M UTE C ONTROL
This connector allows you to connect a expression pedal that you can use to mute the subwoofer
sound. This is helpful if you want to make A/B comparison of the sound with and without
subwoofer and you can quickly control it with a simple pedal.
4) P OWER LED & V OLUME C ONTROLLER
LED: Power ON (Red)/ Protection (Red) /Operation(Green)
Volume Controller: With control the volume of the subwoofer is set to properly match the
satellite speakers. You can start with setting at 12 O’clock position of Control.
If the Subwoofer is placed on the floor against one wall in a normal room, the Subwoofer sound
pressure could be increased 3dB than placed on the freestanding floor. On the other hand, if the
Subwoofer is placed in a corner, the Subwoofer sound pressure could be increased by another
3dB comparing to placing on the floor against one wall. You can use the Level control to set the
Sound Pressure of Subwoofer under different placements to match Satellite sound pressure
properly.
5) C ROSS OVER C ONTROLLER
With the control, “CROSSOVER”, an adjustable, 2nd order (12 dB/Octave) low-pass filter
gives an upper limit between 50 and 180 Hz.
If the Subwoofer SW10K connected to Professional Audio Console with Bass management, the
Subwoofer control should be set to 180 Hz as the crossover will be handled by the Console. (Or
the filter of SW10K will add together with the filter of Console and generate wrong frequency
response at crossover area.
If the subwoofer SW10K connected to Professional Audio Console without Bass management,
the Subwoofer control should be set together with low frequency limit of Satellite Control.
Note: Assure that the power switch is turned off and Volume control is to
minimum before connecting cable.