QSC Audio Car Speaker QSC Audio Car Speaker User Manual

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15
Remote Gain Attenuator
A 3 pin “Euro” connector has been provided to adjust the volume of the K Series loudspeaker or put the system
into standby. (Figure 13) By varying the voltage on the pin between +5V (provided on pin) and
ground ( pin), the volume can be linearly controlled. The voltage on the pin can be created by using a
potentiometer or provided from an external source. Many K Series systems can be controlled from a single poten-
tiometer by connecting the pins of multiple K Series speakers together.
A relay or manual connection can be made between the pin and the pin to put the K Series system into
standby mode after 5 minutes.
WARNING: Do not put more than +5V or less than ground on the pin or else damage may
occur. Do not connect the pin directly to the pin.
Schematics of Proper Wiring for Gain Attenuator
When using a single potentiometer for one loudspeaker. (Figure 14)
When using a single potentiometer for multiple loudspeaker. (Figure 15)
Wiring to the 3 pin “Euro” connector. (Figure 16)
– Figure 13 –
– Figure 16 –– Figure 14 – – Figure 15 –

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