Power Indicator - Focal Professional CMS 40 Manuel D'utilisation

CMS SUB
U s e r M a n u a l
19
CMS subwoofer controls
1 LEVEL
This adjustement allows to set the sound level of the subwoofer relative to that of the main loudspeakers. It should also
be optimised taking into account the actual location of the subwoofer and its acoustic consequences: for example in
an angle the 6 dB acoustic gain should be compensated by an equivalent attenuation to maintain the overall balance
of the system.
2 MUTE
This switch will turn out the output signal of the subwoofer channel (making it silent does not require to switch the
power off).
3 LO PASS
This potentiometer adjusts the cut-off frequency of the low pass filter on the subwoofer channel, thus setting the upper
frequency range to be reproduced by the CMS Sub. The goal is to achieve the smoothest frequency response of the
whole system: sub + monitors.
4 POLARITY
This switch inverts the signal polarity on the subwoofer channel (ie 180° phase shift).
5 PHASE
This potentiomer provides some fine ajustment of the phase on the subwoofer channel. Combined with the polarity
switch it can be used to compensate for the spacing between the sub and the main speakers, so to get a coherent
soundfield through a proper time alignment of the different sources.
6 SUB BYPASS
This input allows for plugging in a control footswitch (not supplied) via a ¼" jack connector.
Turning it active will mute the subwoofer channel. This facility allows for instantaneous comparison between the 2.1
configuration (with sub) and the traditional stereo setup
(without sub) with the same system.

7 POWER INDICATOR

Power "LED" indicator