Cms Subwoofer Controls - Focal CMS 50 Manual

CMS SUB
U s e r M a n u a l
17

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 chan-
nel, 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. Com-
bined 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 compa-
rison between the 2.1 configuration (with sub) and the traditional stereo setup
(without sub) with the same system.
7 POWER INDICATOR
Power "LED" indicator