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Model PA1235X Page 7
© 2002 Xantech Corporation.
INSTALLATION - PHYSICAL LOCATION AND MOUNTING
Upper shelf, component, wall, etc.
2-inch spacing
(minimum)
PA1235X
To maximize air flow, route
single large opening in lower shelf.
Keep perforations on top cover free of
obstructions for max. cooling effect.
Keep perforations on bottom
plate free of obstructions.
Convection
Airflow
Figure 4 – PA1235X Horizontal Mounting
When you mount the PA1235X, you should plan its location carefully. Pay close attention to each of the following
factors:
1. The amplifier is convection cooled. That is, it depends on the natural free flow of air up through the slot
perforations in the bottom plate, over the internal heat dissipating fins, then out the top cover, for
adequate cooling.
2. If mounted in an equipment cabinet or other confining location, allow at least 2 inches of space above the
top cover (see Fig. 4). Be sure there are large openings in the shelf below the unit and in the cabinet to
allow the entry of cool air and the escape of warm air.
Note: Do not remove feet in shelf-top installations.
3. If the cabinet contains other heat generating components or you are using several PA1235X's in a large
multi-zone system, you will have to pay even closer attention to adequate ventilation.
4. Do not hesitate to use fans (quiet, boxer type), if necessary, to ensure a constant flow of air through the
PA1235X's and the other heat generating components.
5. When mounting in a 19" (483mm) rack, adding a single RU (Rack Unit) above and below the PA1235X
will improve convection in heavy use applications.
[One Rack Unit size = 1-3/4" (44.5mm) in height].
6. In multi-zone installations, you will have large bundles of wire and cable to accommodate audio, video
and speaker connections. Be sure to allow enough room for the leads and dress them in such a manner
so as not to block airflow.
7. The PA1235X is designed for mounting into standard 19" Rack Panels or on flat horizontal surfaces.
When mounting into a 19" rack, use the rack panel cup washers and screws supplied.
NOTE: You should consider some sort of rear support for rack mounted units when used in mobile
applications or when located in seismically active areas.