Formula Sound FSM-400, User Manual

BASS

MID

TREBLE

GAIN

XF A

XF B

PFL

2B

2A

Page 3

INPUT CHANNELS  2 TO 4

Input selector switch selects input used.  A = input A
B = input B.  Input B is always a stereo line input
(internal jumpers selects input A to be either RIAA
magnetic cartridge or a standard line input. (phono
connectors)).

L.e.d.s and label area clearly show which input is in
use.

Gain control sets the input gain level.  Check by
selecting PFL and adjusting so that V.U. meter just
peaks into the red.

3 band equalisation pr5dB  -20dB control.

XF A and XF B  (Illuminated push buttons) assign the
channel to the crossfader.  If neither button is pressed
the channel is fed via the stereo buss to the output and
the crossfader will have no effect on this channel.  If
both buttons are pressed the channel will be assigned
to A only

PFL (pre-fade listen) routes the channel signal to the
monitoring system (V.U. meter and phones).  If more
than 1 PFL is selected the sum is routed to the
monitoring system.  If no PFL is selected the monitoring
system reads main output.

60mm channel fader.

Note

For normal operation the fader would normally be used
at maximum and the gain control adjusted for normal
volume.  If the fader is set below No. 7 during normal
operation turn down the gain control and turn up the
fader.  This gives the best performance.