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switches in the out (NORM) position. Pushing a button in (INVERT position) may be used to help
correct audible phase-related problems.
SUB OUTPUT LEVEL CONTROL
This control is used to trim the audio output level to the SUBWOOFER OUTPUT jack on the rear of
the unit. The subwoofer signal is used to provide extra bass via a mono subwoofer speaker in your
system.
This control covers the range of –30dB to +10dB of output gain trim, as indicated on the front panel.
In most cases you would set it to 0dB. You can use this control to compensate for amplifier gain
variations or efficiency of your speaker.
SUBWOOFER FREQUENCY CONTROL
The SUBWOOFER FREQUENCY control sets the crossover point for signals going to the
SUBWOOFER OUTPUT jack. This control covers the frequency range of 50 Hz to 250 Hz. For this
function, both of the input channel signals are combined and frequencies below the set frequency will
be sent to the SUBWOOFER OUTPUT. This is in addition to the normal signals that are sent to each
of the channels other outputs.
REAR PANEL CONNECTORS
It is easy to interface the unit with a wide variety of equipment. The rear panel has balanced XLR and
1/4” inputs as well as unbalanced 1/4” outputs.
XLR INPUT JACKS
The XLR input connections are balanced and follow the AES standard for wiring: Pin 1 = Ground, Pin
2 = Hot (+) and Pin 3 = Cold (-). These inputs directly parallel the 1/4” inputs.
1/4” INPUT JACKS
The 1/4” input connections are balanced with Tip = Hot (+), Ring = Cold (-), and Sleeve = Ground.
These inputs directly parallel the XLR inputs.
1/4” OUTPUT JACKS
The 1/4” output jacks are unbalanced with Tip = Hot (+) and Sleeve = Ground. They are used for
sending signals to amplifiers, or other unbalanced equipment.
