© 2004 Wohler Technologies Inc. ALL rights reserved
6
AMP2-VSD and AMP2-VSDA
User Manual P/N
821581
Rev-
B
Installation
Mounting
The unit should be mounted where convenient for operating persons, ideally at approximately ear/eye level for best high frequency
response and visual observation of the level meters. Its superior magnetic shielding eliminates concerns about locating it adjacent to most
types of CRT monitors, including even high-resolution color monitors.
Heat Dissipation
Heat dissipated by the speaker amps is conducted directly to the left side of the chassis; no special considerations for cooling are
necessary as long as the ambient temperature inside the rack area does not exceed approximately 40°C (104°F).
Sympathetic Vibration
Sympathetic vibration from other equipment (cables, etc.,) in the rack may be serious enough to interfere with the unit’s sound quality out
in the listening area. The use of thin card stock and/or felt or foam weather-stripping type materials between adjacent vibrating surfaces,
or tying up loose cables, etc., may be required to stop vibrations external to the unit.
Mechanical Bracing
Even though the unit is fairly heavy, the chassis is securely attached to the front panel at eight points along its surface, not just at the four
corners of the chassis ears. This feature will reduce or eliminate rear bracing requirements in many mobile/portable applications. The
weight of internal components is distributed fairly evenly around the unit.
Audio Connections
Connection of the audio feeds is straightforward. Please refer to the system interconnect block diagram on pages
27
and
28
for
clarification of the general signal paths into and out of the unit.
Care should be exercised to avoid mismatched cable types and other similar causes of undesired reflections in RF signal systems. If
severe enough, such reflections can result in corruption of the digital datastream.
AC Power
The unit's AC mains connection is via a standard IEC inlet, with safety ground connected directly to the unit's chassis. The
universal AC input (100-240VAC, 50/60Hz) switching power supply is a self-resetting sealed type, with automatic over-voltage
and over-current shutdown. There is no user-replaceable fuse in either the primary or secondary circuit.
Section 1:
Features, Specs, and Installation
