Protection Features; Clip Limiting; Thermal Protection - Peavey Architectural Acoustics IP-Six Manual Del Usuario

The IP -Six incorporates protection features derived from Peavey's commitment to reliability. These
™
PROTECTION
comprehensive protection circuits will protect your amplifier in the real world.
FEATURES

Clip Limiting

At the amplifier's full power, or clipping point, the channel gain will automatically be reduced,
guarding the loudspeakers against damaging high power and continuous square waves that would
otherwise be produced. This is indicated by illumination of the Clip LED. Normal program transients
will not trigger Clip Limiting, only steady or excessive clipping will. Operation is virtually transparent
in use and full signal bandwidth is maintained.
Load Fault Correction
LFC (Load Fault Correction) is an innovative circuit that will instantaneously reduce channel gain to
allow the amplifier to operate at a safe level into an abnormal load. This is indicated by illumination
of the LFC LED. Moderate activation of LFC is inaudible in normal use. In addition, if extreme low
impedance or a short circuit is encountered during high signal-level conditions, the amplifier's output
relay will open.
Fade-In Protection
Fade-In operates every time the amplifier is turned on, or after a "protect" condition. During turn on,
the amplifier goes into protect mode and leaves the speaker load disconnected until the amplifier
determines that the operating status is normal. The Fade-In circuit attenuates the signal during
the initial turn on or protect operation. After relay release, channel gain gradually increases to the
attenuator setting to avoid putting unnecessary stress on the loudspeakers.

Thermal Protection

If the heat sink temperature or power transformer reaches an abnormally high temperature, the
amplifier will protect itself by disconnecting the speaker load until the amplifier returns to a normal
temperature. During this time, the Status LED will turn off, and the cooling fan will operate at
maximum speed.
Short Circuit
If an output is shorted, the LFC, speaker relay and thermal circuits will automatically protect the
amplifier. The LFC circuit senses the short circuit as an abnormal load condition and reduces the
channel gain to a safe level for the load. In extreme or severe conditions, the speaker relays will
disconnect the load and initiate a power-on start-up sequence.
DC Voltage Protection
If an amplifier channel detects DC voltage or subsonic signals at its output terminals, the speaker
relay will immediately open to prevent loudspeaker damage. The Status LEDs turn off.
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