Xantech PA435X User Manual

Page of 20
Model PA435X 
 
Page 11 
 
© 2003 Xantech Corporation 
 
LEFT
RIGHT
SPEAKER
+
-- --
+
LEFT
RIGHT
A
STEREO
MONO
BRIDGED
MODE
 BRIDGED --
1V
.2V
3V
LEVEL
LEFT
RIGHT
SPEAKER
+
-- --
+
LEFT
RIGHT
B
STEREO
MONO
BRIDGED
MODE
 BRIDGED --
1V
.2V
3V
LEVEL
8
STATUS
ZONE IR
K
E
Y
P
A
D
PREAMP OUT
MRC88 Preamp Ouptus
or Other
RCA Type
Patch Cord
RCA Type
Patch Cord
PA435X
Rear Panel
– 
 +
Be sure speakers are
connected with correct
polarity as shown.
Wall speakers,
shelf speakers, etc.
Left
Right
Set MODE
Switch  to
BRIDGED position
– 
 +
L
R
 
Figure 7 – Bridged Mode Connections 
 
Bridged Mode Connections 
     
In general, it is recommended that the BRIDGED mode not be used in multi-room applications where several 
speakers are driven through room volume controls and the like.
   
 
For such applications, use the STEREO mode. Use the BRIDGED mode for single speaker, higher power 
applications, such as in surround sound systems. Use speakers with an impedance rating of 8-Ohms minimum.  
 
To make connections for the BRIDGED mode, follow the steps given before for stereo connections, but with the 
following differences:  
 
1.  You may connect the RCA-type patch cables from the OUTPUT jacks of the driving preamp or other source to 
either the LEFT or the RIGHT input jacks of the bridged pair, as shown in Fig. 6. Do this for just the amplifier pairs 
you wish to run in the bridged mode.  
 
CAUTION:  Be sure Power is OFF when connecting or switching the amp into or out of BRIDGED operation. 
 
2.  Slide the MODE switch to the BRIDGED position.  
  
NOTE:  Do this only on the amplifier pairs you wish to run in the bridged mode! 
 
3.  Connect one speaker wire pair between the 4-terminal "SPEAKER" connectors on the PA435X and the speakers 
as shown in Fig. 6.  Be sure to use only the two outer terminals marked "+” and "–" on the 4-terminal connector as 
shown on the panel for BRIDGED connections. 
 
 
NOTE: Only one speaker is connected per amplifier pair in the BRIDGED mode!