Peavey CC 4000, CC 1800 Protection features, Turn-on/turn-off protection, Autoramp signal control

protection features 5

turn-on/turn-off protection

At power-up, the amplifier stays in the protect mode, with outputs disconnected, for approximately six seconds while the power supplies charge and stabilize. While the output relays are open, the ACL LEDs light.When power is removed, the speaker loads immediately disconnect so that no thumps or pops are heard.

AUTORAMP™ signal control

Whenever a CC Series amplifier powers up or comes out of a protect mode,theAUTORAMP circuit activates. While the speakers are disconnected,theAUTORAMP circuit fully attenuates the signal. After the output relay closes, the signal slowly and gradually raises up to its set level. The AUTORAMP Signal Control circuit has some important advantages over conventional instant-on circuits:

1.If a signal is present during power-up (or when coming out of protect), the speakers are spared a sudden, potentially damaging burst of audio power.

2.Because the gain is reduced until after the output relay closes, no arcing occurs at the contacts, thereby extending their useful life.

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