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Bi Amp B&W 803s with 9BSST and 4BST

I am planning to bi-amp my B&W 803 Nautilus speakers with my 4B-ST and 9B-SST ( I have 2 channels available ). Which amp should I use to power the bass / mid-treble? I currently use my 4B-ST to bi-wire my 803s. Should I even consider bi-amping? Thanks for the advice.

Other information: Using Bryston SP 1.7 as my pre-amp and Transparent Speaker cables.
donny619
kr4's avatar
kr4
3,685 posts
 
Well, I have not "always read that it is recommended." But why not just try it both ways and decide for yourself if you are willing to invest the effort. I would not bother.

Kal
shadorne's avatar
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shadorne
7,477 posts
 
The 4B-ST should go to the bass and the 9B-SST to the mid and tweeter. This should help reduce IMD distortion from the hard driving bass from reaching your midrange.
donny619 OP
5 posts
 
Thanks for the advice Shadorne
mmike84
309 posts
 
I think bi-amping is a great improvement in a difficult to power speaker. I used a 4 channel 300 series Rowland that was excellent, and no output matching issues. In my last pair of speakers the improvement was not subtle.
kr4's avatar
kr4
3,685 posts
 
I think biamping as it is typically done (without replacing the passive crossover with a custom-designed active network) is only of marginal value and that only if the single amp lacks adequate power for the application. Replacing it with an adequate amp is of at least as much efficacy as biamping.

Kal
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