




The Rear Panel
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| 26 | 27 | 28 | 29 | 30 | 31 |
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20.AC LINE IN: Firmly insert the supplied AC power cord into this socket until it is fully seat- ed. Plug the male end of the cord into a grounded AC outlet. DO NOT DEFEAT THE GROUND PRONG OF THE AC PLUG!
21.BAL. OUT: This jack supplies a line level signal for connection to a house mixing board, recording console or external amplifier. The sig- nal level at this jack is governed by the Post/Pre switch (#23).
22.GND/LIFT: Use this switch to lift the ground connection at the Bal. Out jack to help eliminate hum in the Bal. Out signal.
23.POST/PRE: The signal at the Bal. Out jack (#21) can be set to either Pre or
24:TUNER OUT: This jack is provided for con- nection to an electronic tuner and is always “live,” even when the Mute switch (#3) is engaged. This allows for “silent tuning” as well as a monitor feed which stays hot even when the house mix is muted.
25.SPEAKERS: These output jacks supply
into 4 ohms or 2500 watts rms into 2 ohms (minimum load).
WARNING: Use speaker cables to make the connections. Do not use instrument cables as they may overheat.
Pin 1+ = hot
Pin 1– = return
26.CIRCUIT BREAKER: The
27:POWER AMP IN: This jack connects an external preamp directly to the power amp. When using an external source, connect the output of the source to this jack by means of a shielded signal cable to feed the signal into the power amp section. The internal signal is dis- connected when a connector is inserted into this jack.
28.PREAMP OUT: Use this jack to send a sig- nal from the internal preamp to an auxiliary power amplifier, mixing console, monitor sys- tem, or house PA system. The signal at this jack is
29.EFFECTS LOOP RETURN: When using an external signal processor, connect the out- put of the device to this jack by means of a shielded signal cable.
30.EFFECTS LOOP SEND: When using an external signal processor, connect this jack to the input of the device by means of a shielded signal cable.
31.FOOTSWITCH: Connect a
NOTE: A footswitch may be purchased at your local Ampeg Dealer or ordered directly from LOUD Technologies Inc. Be sure to ask for model #AFP2.
IMPORTANT: This unit employs forced air cooling by means of an internal fan. The rear and side ventillation slots must remain unobstructed when operating this amplifier. When mounting the unit in a rack make sure there is ample room for proper air circulation. The rack must be constructed and positioned in such a manner to allow proper air flow and the exhausting of hot air away from the rack
at all times.
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