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Bi-Amping power amps

Which is the best method of biamping, using a pair of stereo power amps? Use one for each speaker (left to HF,right(with left signal)to LF, or the standard(?)left/right HF to one power amp and left/right LF to other. Or do you recommend something else (split HF, and LF of each speaker across each power amp to balance power draw? I have yet to try all of the above. Has anyone out there tried any of these options??
miketw
trelja
3,223 posts
 
Assuming your amps are the same: Bridge them to mono. Then one for left, the other for right. You'll really see an increase in power, bass, and slam. If the amps are not the same: Use the lower current or sweeter amp for the mid/treble. Use the higher current, more neutral(or harsh), or worse sounding amp for the bass.
miketw OP
14 posts
 
The amps are a pair of Audiolab 8000P power amps, so should be identical (made in same year!). How do I bridge them to mono ?? I thought stereo amps had to specifically be mono bridge capable? Thanks for input so far.
kweifi
46 posts
 
Instructiuons on how to do this are given in the back of manuals for Mark Levinson 300 series amplifiers. You can get these by going to the Madrigal website (www.madrigal.com). For bridging you will need to strap the grounds together and have a "Y" connector made to go between your preamp and the stereo amp, with leads reversed. Bridging is tricky and may not sound well compared with bi-amping. If you have enough power from the amps, then bi-amping is the way to go.
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