Page 6
Model PA635X
© 2001 Xantech Corporation
4. Do not hesitate to use fans (quiet, boxer type), if necessary, to ensure a constant flow of air through the PA635X'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 PA635X 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 PA635X 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.
CONNECTING THE PA635X
LEFT
RIGHT
SPEAKER
+
-- --
+
LEFT
RIGHT
1
STEREO
MONO
BRIDGED
MODE
+
BRIDGED
--
1V
.2V
3V
LEVEL
VIDEO
AUDIO
L
R
1
RCA Type
Patch Cords
Preamp Outputs
ZPR68, etc.
PA635X
Rear Panel
+
Be sure speakers are
connected with correct
polarity as shown.
Wall speakers,
shelf speakers, etc.
Left
Right
Set
MODE
Switch to
STEREO
position
+
FIGURE 5 - PA635X STEREO MODE CONNECTIONS
When making connections to the PA635X be sure the power cord is unplugged. Proceed as follows:
Stereo Mode Connections
1. Using good quality RCA-type patch cables connect the L and R OUTPUT jacks of the driving preamp to the LEFT
and RIGHT input jacks on the PA635X. Do this for each amplifier pair. Refer to Fig. 5.
2. Slide the MODE switch to the
STEREO
position.