GENERAL OPERATION
SELECTING AMPS
There are two user selectable modes available, exclusive and non-exclusive modes. In exclusive mode, the A
and B switches operate like this:
Press A to select amp A and turn off amp B
Press B to select amp B and turn off amp A
If an amp is selected, press the same amp to turn on both amps
If both amps are on, pressing A or B selects only that amp.
In non-exclusive mode the A and B switches operate like this:
Pressing A or B toggles only that amp and affects no other amps
MUTING AMPS
Pressing and holding the Boost switch for ½ second will put the unit in mute mode, turning off all amps. Press
the Boost switch again to return to the last state, or select amp A or amp B to just go directly to either amp.
CHANGING GAINS
You can independently change the levels of each of the 3 amp states (A only, B only, and Both) in the non
boost state and in the boost state for a total of 6 gain settings. To change the gain of the selected amp(s)
either with the boost on or off, simply press and hold the A switch to decrement the gain(s) or the B switch to
increment the gain(s). Having independent control like this lets you have a different level when both amps are
on than when either is on alone and also lets you set the boost levels separately from the non boost levels.
The LEDs for each amp can be used as a visual indication of the gain of that amp with green representing
minus 18dB, yellow indicating 0dB and red indicating +18dB. The color will vary smoothly between green,
through yellow, to red as the gain increases. When boost is off levels can be set from -18dB to 0 and when on
from 1dB to +18dB.
SETTING OPTIONS
TO RESTORE FACTORY DEFAULT SETTINGS
Press and hold all 3 switches down while powering up the unit. The 3 LEDS will blink 3 times together to
indicate success. The unit will then go into normal power up mode automatically with amp A selected, boost
off and a gain of 0dB. The reset sets the MIDI channel to 1, the Fade Rate to 50ms, and Exclusive Mode.
TO SET THE MIDI CHANNEL (factory default=channel 1)
To change the MIDI channel, press and hold the Amp A switch while powering up the unit. The Amp A
indicator will blink to indicate that you are in the MIDI channel programming mode. The previously set
channel is displayed and this is indicated by the LED states. To change the channel, press the INC/DEC
switches repeatedly. The LEDs will walk through a "binary" display to indicate the channel number each time
a switch is pressed. For example, 000=channel 1, 001= channel 2, 010 is channel 3, 011 is channel 4, and so
on. When you reach channel 8 (all LEDs lit), the next press of the INC switch will turn off all LEDs again
indicating channel 9, then 10 and so on until all LEDs are lit once again indicating channel 16. When you reach
