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Fault LED:
The Fault LED is red and may be an indication of short circuit, open circuit, DC voltage or
overheating.
Clip LED:
The Clip LED is orange and indicates clipping. It will light dimly at the onset of clipping and
increase in brilliance as clipping becomes more severe. The LED will continue to illuminate
until clipping ceases. If the LED’s are fl ashing quickly and intermittently, the channel is
sitting at clip threshold, while a steady, bright glow means the amplifi er is clip limiting, or
reducing gain to prevent severely clipped waveforms from reaching the speakers.
Signal LEDs -10dB/-30dB:
There are two blue signal LED’s per channel, -10dB and -30dB. When an LED’s corresponding
channel produces an output signal of ~.4 volts RMS or more the LED will illuminate. It is use-
ful in determining whether a signal is being amplifi ed by the amplifi er.
Power LED:
The Power LED is blue and illuminates when the power is turned on.
Input attenuators:
These are the knobs located on the front panel for controlling gain to their respective channels
in stereo mode.
Switches / Indicators / Controls
Mode Select Switch:
The rear panel is equipped with a “mode select switch” which enables
the user to switch between bridged, parallel and stereo modes. For more
details please refer to the section on Bridge/Parallel/Stereo Operation.
In bridged mode only channel A’s knob controls gain while channel B’s
does not function.
Do not operate the mode select switch while the amplifi er is on.
