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

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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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Contents KW Series Shock to humans Maintenance servicing instructions in this manualFCC Statement QSC Audio Products 3 Year Limited WarrantyFeatures Package ContentsKW152 15, 2-Way Loudspeaker System KW153 15, 3-Way Loudspeaker System KW181- Single 18 Subwoofer Pole screws into the socket for a secure fit ApplicationsRecommended Deployment InstallationNever exceed the rating of the hardware or equipment AC Mains Input Connections System Power SequencingAlways follow the rule speakers are last on, first off Channel B Channel aBalanced Inputs Unbalanced Inputs Green Signal LEDChannel a Gain Knob Channel B Gain Knob Output ConnectionsKW181 Low-frequency EQ DSP FeaturesDSP User Functions Proprietary DSP FunctionsSubwoofer Polarity High-frequency EQRear Limit LED Additional FeaturesStandby Front LED FunctionsOccur. Do not connect +5V pin 1 directly to pin 3, ground Schematics of Proper Wiring for Remote Gain AttenuatorWiring to the 3 pin Euro connector Remote Gain AttenuatorInput Hookup Output Hookup Output Hookup Common Standalone Small System Mono Common Stereo System Dimensions KW153 Dimensions KW153 Cover KW M10 KIT KW181 Cover World Wide Web Mailing AddressTelephone Numbers Facsimile Numbers