© 2006 Wohler Technologies Inc. ALL rights reserved
6
AMP-S8
User Manual P/N
821640
Rev-
B
Mounting
The unit should be mounted where convenient for operating persons, ideally at approximately ear level for best high frequency
response. 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 2U models are 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 and Cable Recommendations
Connection of the audio feeds is straightforward. Please refer to the system interconnect block diagram on page
40
for
clarification of the general signal paths into and out of the
AMP-S8
units.
There are recommended limits to the length of cable that should be used for feeding
HD-SDI
signals sources to the
HD-SDI
inputs
of the
AMP-S8HDA
and
AMP-S8MDA
units. Recommendations are as follows:
Using
Belden 1694A
cable (or equivalent),
HD-SDI
input2 (
IN 1
and
IN 2
) = Up To
150 Meters
(
492 feet
)
Note:
The connections of all DB-25 connectors are compatible with
Tascam
*
DB-25 to XLR cable assemblies. Consult the
factory for availability. All rear panel connectors are female except for the XLR connectors.
*
The
Tascam
trademark is owned
by Teac Inc.
Electrical Interference
Care should be exercised to apply proper input termination settings and avoid mismatched cable types and other similar causes of
undesired reflections in digital signal systems. If severe enough, such reflections can result in corruption of the digital datastream.
As with any audio equipment, maximum immunity from electrical interference requires the use of shielded cable; however,
satisfactory results can sometimes be obtained without it. The internal circuitry common is connected to the chassis.
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.
Installation
Section 1:
General Features and Specifications
