Peavey 450 operation manual Volume Control

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 Pre-EQ (switch set to the “out” position) or a Post-EQ (switch set to the “in” position) send to the XLR line out jack.

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 low-level effects or signal processing equipment.

22. EFFECTS RETURN JACK

Input for returning signals from external low-level effects or signal processing equipment.

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 MAX 450 amp (some volume difference may be noticed due to the impedance change experienced when adding an external unit to the signal patch).

26. POWER AMP IN JACK

This 1/4" jack is used to input an external signal to the power amp section of the MAX 450. Using this jack will disconnect any signal from the preamp section. Using this jack along with the preamp out jack creates a possible second effects loop.

27. POWER CORD RETAINERS

Use the Power Cord Retainers to wrap and store your cable while storing or transporting your MAX 450. It is best to disconnect the cord from the unit before wrapping.

28. SPEAKER OUTPUT JACKS

These two 1/4" jacks provide the powered signal from the amplifier. Each connector is electrically the same (in parallel). Use one of the jacks to connect your speaker cabinet and the other to add a second speaker cabinet in parallel. The minimum speaker load impedance is 2 Ohms (or two 4-Ohm speakers in parallel).

Warning: To prevent the amplifier from overheating, the front fan and rear-located vents should always remain clear of obstructions.

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