QSC Audio KW122, KW152, KW181, KW153 Schematics of Proper Wiring for Remote Gain Attenuator

Models: KW153 KW181 KW152 KW122

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Remote Gain Attenuator

A 3-pin “Euro” connector is provided to attenuate the volume of the KW Series loudspeaker or put the system into standby from a remote location. The Remote Gain connector can only attenuate the output signal level below the level set by the Channel A and Channel B Gain knobs.

By varying the voltage on (pin 2) between (pin 1) and (pin 3, ground), the

volume can be linearly controlled. The voltage on can be created by using a potentiometer or provided from an external source. Many KW Series systems can be controlled from a single potentiometer by connecting the pins of multiple KW Series speakers together.

A relay or manual connection can be made between (pin 2) and (pin 3, ground) to effectively mute the output and put the KW Series system into standby mode after 5 minutes.

CAUTION: Do not put more than +5V or less than ground on (pin 2), or damage may

occur. Do not connect +5V (pin 1) directly to (pin 3, ground).

Schematics of Proper Wiring for Remote Gain Attenuator

When using a single potentiometer for one loudspeaker.

When using a single potentiometer for multiple loudspeaker.

Remote Gain Attenuator

EN

Wiring to the 3 pin “Euro” connector.

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QSC Audio KW122, KW152 Schematics of Proper Wiring for Remote Gain Attenuator, Wiring to the 3 pin Euro connector