JBL VRX900 manual Bi-Amplified System

Array Configuration Selector (ACS)

Below is an example of applying the ACS in a three-speaker array. In this particular configuration,

the ACS on the top speaker is set at +3 dB, the middle speaker at 0 dB, and the bottom speaker -3 dB.

+3 dB

0 dB

-3 dB

Audience

Bi-Amplified System

In a bi-amplified system, array shading is accomplished by connecting separate amplifier channels to the HF section of each VRX932LA/VRX928LA. In larger arrays, a single amplifier channel may be used for two adjacent loudspeakers. Array shading is then accomplished by adjusting the gain of the HF amplifier channels. For extremely precise control over system performance, it may also be desirable to dedicate an individual system controller output to each HF amplifier channel.

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