Fbt symbol 12000 User Manual - page 5
OUTPUTS
2 OHM MIN.
2 OHM MIN.
Ch 1
Ch 2
INPUTS
LINK
LINK
Ch 1
Ch 2
Stereo
Bridge
Parallel
Ground Lift
0
10
Status/Clip
Ch 1
4
3] Status / Clip
Amplifier operating status indicator LED:
- green indicates that the amplifier is functioning normally
- red indicates that the signal has reached the saturation threshold (clipping level) in the amplification stage (in this
case reduce the volume by means of the Ch1 / Ch2 (1) controls).
4] Stereo
This LED illuminates when the Symbol power amplifier is functioning in stereo mode (refer to the Operating Modes chapter).
5] Parallel
This LED illuminates when the Symbol power amplifier is functioning in parallel mode (refer to the
Operating Modes chapter).
6] Bridge
This LED illuminates when the Symbol power amplifier is functioning in bridge mode (refer to Operating
Modes chapter).
7] Ground lift
This LED illuminates to indicate that the amplifier input ground is isolated from the ground of connected equipment (see description -13-).
8] Power switch: In an audio system it is good practice to switch on power amplfiers last and switch them off first to avoid possible signal
peaks.
9] Ch1 / Ch2 inputs
Inputs with XLR connectors. The inputs are compatible with balanced signals from mixer outputs;
the two sockets for each channel are connected in parallel so that one can be used as an input and
the other to patch the signal to another amplifier.
10] Ch1 / Ch2 outputs
Outputs with Speakon connectors. For connecting loudspeakers to both amplification circuits.
Loudspeakers must have minimum impedance of 2 ohms and power handling of at least 1500W (Symbol
12000) or 2400W (Symbol 18000).
CONTROLS DESCRIPTION