Polk Audio PA880 Owner's Manual

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 © 2010 Polk Audio—all rights reserved
© 2010 Polk Audio—all rights reserved  
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Speaker Wiring Diagram PA330
The Polk Audio PA330 amplifier offers two positive and two negative output terminals for ease of  
connecting the speakers to the amplifier. Each amplifier is stable to 2 Ohm per channel or 4 Ohm bridged.
Tri-mode
For Tri-mode wiring the high frequency speakers should be run in stereo  
>˜`ÊÕÃiÊ>Ê«>ÃÈÛiʈ˜Êˆ˜iÊVÀœÃÜÛiÀÊ­V>«>VˆÌœÀ®Ê܈̅Êi>V…Ê̜ÊÀi“œÛiÊ̅iÊ 
low frequency. The mono low frequency speaker would be connected  
in the bridge mode to the two stereo channels with a in line passive  
VÀœÃÜÛiÀÊ­ˆ˜`ÕV̜À®Ê̜ÊÀi“œÛiÊ̅iʅˆ}…ÊvÀiµÕi˜VˆiðÊ/…iʅˆ}…ÊvÀiµÕi˜VÞÊ 
speakers should be no less than 2 Ohm and the low frequency speaker  
should be no less than 4 Ohm.
Bridging
For bridging into a single speaker load, the Polk Audio PA330  
has the ability to bridge the front or rear channels together.  
The impedance of the speaker must not be less than 4 Ohm.
Speaker Wiring Diagram PA660
/…iÊ*œŽÊÕ`ˆœÊ*ÈÈäÊ>“«ˆvˆiÀʜvviÀÃÊÌܜÊÃiÌÃÊ­vÀœ˜ÌÊ>˜`ÊÀi>À®ÊœvÊÌܜʫœÃˆÌˆÛiÊ>˜`ÊÌܜʘi}>̈ÛiʜÕÌ«ÕÌÊÌiÀ“ˆ˜>ÃÊvœÀÊi>ÃiÊ 
of connecting the speakers to the amplifier. Each amplifier is stable to 2 Ohm per channel or 4 Ohm per bridged channel pair.
Tri-mode
For Tri-mode wiring the high frequency speakers should be run 
ˆ˜ÊÃÌiÀiœÊ>˜`ÊÕÃiÊ>Ê«>ÃÈÛiʈ˜Êˆ˜iÊVÀœÃÜÛiÀÊ­V>«>VˆÌœÀ®Ê܈̅Ê
each to remove the low frequency.  The mono low frequency 
speaker would be connected in the bridge mode to the two 
ÃÌiÀiœÊV…>˜˜iÃÊ܈̅Ê>ʈ˜Êˆ˜iÊ«>ÃÈÛiÊVÀœÃÜÛiÀÊ­ˆ˜`ÕV̜À®Ê̜Ê
remove the high frequencies.  The high frequency speakers 
ŜՏ`ÊLiʘœÊiÃÃÊ̅>˜ÊÓÊ"…“Ê>˜`Ê̅iʏœÜÊvÀiµÕi˜VÞÊ­LÀˆ`}i`®Ê
speaker should be no less than 4 Ohm.
Bridging
For bridging into a single speaker load, the Polk Audio PA660 
has the ability to bridge the front or rear channels together. 
The impedance of the speaker must not be less than 4 Ohm.
 
Bridged
Stereo
4

2
4
2
4
Bridged
Tri-mode
2
4
2
4
4

bridged
bridged
4

4

2
4
2
4
2
4
2
4
Front and Rear 
in Tri-mode
4 channel
2
4
2
4
2
4
2
4
2 channels 
Bridged Front & Rear
bridged
bridged
4
8
4
8