BSS Audio
FCS-930/960 User Manual v3.0
Page 7
6 Control descriptions
6
.1 Front panel
Filter boost and cut fader control. Move this fader to vary the amount of boost or
cut required, at the frequency of the fader. It has a centre detent and electrical
centre tap which guarantees you a precise ‘flat’ setting in the central position.
Gain adjustment control with +/- 10dB of range. Adjust this if you wish to balance
the equalised sound with the general loudness of the unequalised sound. The
control has no effect on the bypassed signal level.
EQ IN selector. Push to select equalisation, release to bypass. The LED indicator
illuminates to confirm the equalisation in status. Bypass is achieved by using relays
which ensures a complete equipment bypass.
Peak LED indicator gives you advance warning of possible circuit overload by
illuminating 2dB before actual clip. It is monitoring signals both before and after
the GAIN control [2] and will operate should any one of them exceed the danger
level. Should this occur, then the signal level entering the FCS-930/960 will need
to be reduced in level. If you are using large amounts of extra gain from the GAIN
control then this can be backed off, but any previous balance achieved will then
be lost.
Operate this MODE switch to change the filter bandwidth. This is confirmed by the
appropriate LED illuminating, with higher selectivity, fine mode being active with
the switch depressed. In general you should use the normal mode (switch out), for
all general sweetening work. Select the fine mode for specialised room/speaker
notching and feedback control applications.
Frequency control for the high pass filter. This allows you to roll off the low
frequency energy of the program should it not be required. It is fully adjustable
from 20Hz to 250Hz.
High pass filter switch selects whether the filter is in or out of circuit. Pressing the
switch selects the filter, confirmed by the LED illuminating.
6
.2 Rear panel
Mains power fuse is 20mm long and rated at T250mA for 120V voltage setting and
T200mA for the 240V voltage setting. For continued protection, please always
replace this fuse with the correct value.
Mains power switch.
Mains voltage selector switch allows operation from 90V-130V or 190V-250V.
Mains power inlet.
