QSC KW153 [19/28] Remote gain attenuator

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

Remote Gain Attenuator

When using a single potentiometer

for one loudspeaker.

When using a single potentiometer

for multiple loudspeaker.

Wiring to the 3 pin “Euro” connector.