Vintage Asylum

Classic gear from yesteryear; vintage audio standing the test of time.

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Re: How does Bi-Amping really work?

Posted by BeatleFred on November 1, 2002 at 22:12:54:
Some preamps like my vintage Sansui CA-2000 have TWO pairs of output jacks and an A+B switch position to make it very easy to connect to two amps- so no physical splitting of the preamp signal is necessary.
Also- the advantage to vertical biamping is that each amp drives its own speaker and thus drives the woofer(s) in only one speaker as opposed to both. In a horizontal arrangement, one amp drives the high/mid, and one amp drives the lows (woofers)- in which case one amp has to drive the woofers in BOTH speakers. So it would seem given the choice, vertical biamping is preferable.