13.MID CONTROL
An active tone control (peak/notch, ±15 dB) that varies the midrange boost or cut.
14.MID SHIFT CONTROL
Selects the frequency band (200 — 2 kHz) that the mid control cuts or boosts.
15.HIGH CONTROL
An active tone control (shelving type, ±15 dB) that varies the high frequency boost or cut.
16.VOLUME CONTROL
Controls the overall volume level of the amplifier. The final level adjustment should be made after the desired sound has been achieved.
17.LINE OUT—XLR JACK
Provides low impedance, electronically balanced signal for patching into a sound reinforcement or recording console.
18.LINE OUT LEVEL CONTROL
Controls the output level of the balanced line out.
19.PRE-/POST-EQ SELECT SWITCH
Allows selection between a
20.GROUND LIFT SWITCH
Provided to lift the ground on the XLR jack when ground loops are encountered.
21.EFFECTS SEND JACK
Output for supplying signals to external
22.EFFECTS RETURN JACK
Input for returning signals from external
23.EFFECTS LOOP REMOTE SWITCH JACK
This jack accommodates the remote footswitch (optional part number 00051000 ON/OFF single button switch), which is used to remove the effects loop from the signal path. The remote footswitch essentially acts as a bypass to punch in or punch out from your external effects.
24.DDT™ SPEAKER PROTECTION DEFEAT SWITCH
DDT™ speaker protection is defeated when the push button is in the “in” position. We recommend that DDT be enabled at all times to protect the speakers.
25.PREAMP OUT JACK
This 1/4" jack is used to route the preamp signal to external inputs, such as the input of an additional power amp. The signal is post volume control. Use of this jack does not defeat the signal to the NitroBass amp (some volume difference may be noticed due to the impedance change experienced when adding an external unit to the signal patch).
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