Bi-Wire Polk RM7302 Center, or not?

DrillSgtDon

I have a diagram on both my Polk center channel speaker, and my Yamaha HT5890 7.1 surround receiver. But the diagrams look as if they only pertain to the front left and right speakers. What about the center channel? It only has one channel. The left A and B speaker out-put goes to one left (bi-wired) speaker. And so on for the right speaker. Then make sure the speakers A and B are both turned on. This is accourding to the diagram. But I see nothing about how to bi-wire the center channel. The center does not have a speaker B. My center speaker has a bi-wire setup.

So is it even feasable to bi-wire the center channel speaker, or why does it even have a bi-wire setup??

Burnzy

That Yamaha looks like a nice receiver. If I am correct on this, what you are describing is actually bi-amping the speakers and not bi-wiring. To run a set of cables to the top binding post from output A and another set of cables to the lower binding post from output B would be bi-amping. Bi-wiring would be running a speaker cable from output A and plugging that cable into all four binding posts on the speaker. The center channel output on your receiver is not set up for bi-amping but your center channel speaker can be bi-wired. Hope this helps…

Regards,
Scott

John K.

Don, welcome. You're correct that your left and right speakers can be bi-wired by using the A and B output terminals on your 5890, which are simply a parallel connection to the same amplifier channel; no bi-amping is involved. You could do bi-wiring with the center channel as well by connecting two wires to both the positive and negative center terminals of the 5890(trimming the ends if necessary to make them fit the terminal easily). However, bi-wiring isn't significantly different electrically from single wiring and has no audible benefit. Save your time and money for something which will make a difference.

DrillSgtDon

Thanks, for the quick replys! That seems to answer my question. I did go out yesterday, and bought some speaker wire, and some banna plugs. So I removed the flat connectors that connected both positives and both negatives on the center speaker. Then I ran 2 wires with banna plugs to jump the two channels together on the polk speaker. I heard that this would help the sound quality over the flat medal jumpers that came with the speaker. Havn't really had a chance to see if it is a noticable difference, yet. I will forget the idea a bi-amping, or bi-wiring from speakers A and B, for the center channel, since there is only one channel from the center out.

The yamaha does a wonderfull job, with the Bose Accoustimas 16. The 400+ watt Bose sub does a better job than I thought, and it all sounds awsome!!! 140w per channel*7 + the sub. Not bad..