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Determining the control voltage – Extron Electronics MLA-VC10 User Manual

Page 15

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MLA-VC10 • Installation and Setup

2-3

Determining the Control Voltage

The MLA-VC10 drives the amplifier's or mixer's remote control

port. Different models of amplifier or mixer may require a

different voltage to control the audio volume. You need to know

the specific voltage requirements of your equipment before you

can configure the MLA-VC10 to control it.
Sometimes the equipment's manual lists the required voltage,

but usually you will have to test the voltage yourself, using a

voltmeter. This section describes how to measure the control

voltage for some widely used amplifiers.
Most amplifiers come in one of two basic configurations:

two-terminal (control and ground)
three-terminal (reference, control, and ground)

N

The MLA-VC10 works with a wide range of amplifiers.

The models shown in this section are included as

examples only. The MLA-VC10 is not limited to

working with only the amplifiers shown in this manual.

The next two pages show how to measure control voltages

on "typical" amplifers: the Peavey UMA 35T II (page 2-4) and

Biamp Precedence CMA 60 (page 2-5).
Following that, two special case amplifiers are described: the

TOA 700 series (page 2-6) and 900 series (page 2-7).