Academy Audio Hi-End MUSES VCM User Manual - Page 2
Browse online or download pdf User Manual for Control Unit Academy Audio Hi-End MUSES VCM. Academy Audio Hi-End MUSES VCM 12 pages. Mini electronic volume controls
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1. Introduction
Thank you for purchasing the VCM, a Hi-End MUSES® Mini Electronic Volume Control from Academy
Audio Inc.
The VCM is a reduced size version of our Hi-End MUSES® Electronic Volume Control board, and is a
complete ready to use two channel volume control unit that requires a +/-15V power supply and control
signals to operate.
The unit is built using a unique NJR MUSES®72320 volume control chip. Unlike other electronic volume
control chips, this chip does not include any active circuitry, and therefore provides vanishingly low level
of noise and distortions.
The VCM can be used with an outboard amplifier/buffer section or without any active amplifier/buffer.
A footprint is provided for a dual JFET opamp for a standalone complete volume control application.
A control signal for an external high quality MUTE relay is provided to eliminate any unwanted noises
from power-up/power-down processes.
2. Mechanical Installation
Dual Opamp
Footprint
"L-" Output
Audio and
Power
Header
Connector
Total assembly height is 0.300". All dimensions are in 0.001" unless noted otherwise.
Address
Jumpers
Figure 1. VCM Board Connections (Top View).
Page 2 of 11
"R-" Output
Ø0.100"
4 holes
Aux Control
Connector
Control
Connector