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Rear Panel
TUNER SEND
This output is provided for connection to electronic tuners (buffered signal). This output may also be
used as an unbalanced Direct Interface, or a buffered pass-through to use two amps simultaneously.
NOTE: The TUNER SEND is always ACTIVE, even when the amp is muted.
GROUND LIFT
This button is provided to prevent a ground loop that may result in "hum" noise. When depressed (IN
poisition), Ground Lift is engaged.
DIRECT INTERFACE (DI)
This is a built-in, balanced Direct Interface is used to send a buffered, unprocessed signal to an external
mixer. NOTE: The Direct Interface features failsafe circuitry, which runs on standard 48-volt phantom
power from the mixer. This allows the DI to continue functioning even in the event of a blown circuit
breaker or amplifier shutdown. In the event of a failsafe operation, the mute switch will be bypassed.
This circuit is active, even when the power switch is in the "Off" position.
AUXILiARY INPUT
This input is provided for a convenient input of rack-mount processors. This input is for signal levels
only and overrides the high and low input jacks on the front of the unit. NOTE: For a clean look, the
bass may be plugged directly into this jack, but please note that this is a high gain input.
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