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using different amps for Bi-amping ,any good ?? l

Hi, Having done upgrading my spkr and amps;next thought of Bi-amping my spkr(Bi-wireable).My current amps- all tube Preamp(with 2 set of Pre-Out) and Hybrid Amp(160Wx2).
My question is : How about using 2 different type and different power out put amp for Bi-amping ? Any good ?? (I mean I still have my NAD C370/120Wx2,SS,can be use as power amp;it also has 2 set of Pre-Out socket)
Your opinion and suggestions would be highly appreciated and thanks in advance
Simon
simonleemd

Showing 2 responses by eldartford

eldartford
4,262 posts
 
The woofer and the tweeter are very different devices. The driver differences will make any power amp sonic difference insignificant. Select amps for other reasons.
eldartford
4,262 posts
 
Forgive me if you have heard this comment from me before.

Biamping, using a low level crossover, made a lot of sense back in the days when 15 watt power amps were common, 25 watts considered overkill, and IM distortion was one percent or more in the very best equipment.

Today, except for ProSound rigs where thousands of watts are required, the only real advantage of biamping is the elimination of passive crossovers. In the case of subwoofer crossovers, 100 Hz or lower, an active low level crossover and biamping is almost manditory, because the required values of inductors and capacitors for a passive crossover would be very expensive. The case for biamping at higher crossover frequencies is not so strong, although some (like Sean) swear by it.

Another factor, for subwoofers, is that a specialized LF amp can be used. All the audiophile characteristics like "transparency", "air" etc apply to HF amps. Quite inexpensive "plate" SW amps work well.
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