Bedienungsanleitung Peavy IPR2 5000 (Seite 22 von 44) (Englisch)

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This button triggers the relay that provides power to the amplifier. This unique power switch will glow blue dimly. When turned on, it

illuminates brightly.



The IPR2

™

amplifiers feature five front-panel LED indicators per channel: ACTIVE, SIGNAL, DDT

™

, TEMP and DC. These LED indicators inform

the user of each channel’s operating status and warn of possible abnormal conditions.

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The Active LED indicates that its channel’s output is closed and the channel is operational. It lights under normal operation and remains on,

even when the channel is in DDT gain reduction. These protection features leave the output relay closed. If the Active LED goes off, there is no

signal at the output connectors.



This LED lights when its channel produces an output signal of about 4 volts RMS or more (0.1 volt or more at the input, with 0 dB attenuation

and standard x40 voltage gain). This signal indicates whether a signal is reaching and being amplified by the amplifier.



™



A channel’s DDT

™

LED will light at the onset of clipping. If the LEDs are flashing quickly and intermittently, the channel is just at the clip

threshold. A steady, bright glow means the amp is clip limiting, or reducing gain to prevent severely clipped waveforms from reaching the

loudspeakers. See the Distortion Detection Technique section for more information. During initial power-up the DDT LED will light to indicate

that the gain reduction circuitry is activated. This prevents sudden signal bursts when the speaker relays are closed.



In the unlikely event of an unstable thermal condition, amplifier protection will be activated and will shut down the offending channel. The

Temp LED will remain illuminated until safe operating temperatures have returned.



In the event of abnormal operating conditions, the IPR has built-in amplifier protection. Under conditions that would normally damage the

power amplifier, the DC LED will illuminate and the amp will automatically attempt to restart to correct the condition. If the amplifier does not

return to normal operating status, contact your local authorized service center.

INPUT ATTENUATORS

Whenever possible, set the attenuators fully clockwise to maintain optimum system headroom. The input attenuator controls, located at the

front panel (one for channel A, one for channel B), adjust gain for their respective amplifier channels in all modes. See the specifications at the

end of this manual for standard voltage gain and input sensitivity information.

Front Panel

IPR2

™

7500

IPR2

™

5000

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