VANDERSTEEN 3 A SPEAKERS

I wouldn't doubt Richard's advice regarding his speakers.

I had a pair of 3A Signatures that I vertically bi-amped with Counterpoint SA-220s. The combination sounded amazing, significantly better than running a single amp.

Perhaps those amps were the exception, being able to handle the load.

I biamped mine for years with a Rotel RB 985. Sounded MUCH better than biwiring, but this could have been due to the amp. The midrange and bass really opened up with biamping. It was like going from mono to stereo.

Darren

I would seriously consider Davemitchell's advice. While I don't use Vandy speakers, I have gone to the stereo subwoofer paradigm (with sealed cabinet mains) with much more bottom octave clarity and impact. Takes a bit of time using a test cd/SPL meter to get the best result for one's unique room characteristics, but time well spent. Of course dual line stage outputs are needed and I had to change line stage to eliminate a ground loop issue unsolvable otherwise, but this former skeptic is now firmly in the "mains w/stereo subs" camp. My room puts a 60Hz +10dB node right at my preferred listening position and being able to tame it with eq in sub amps like the Reckhorn A400 is not possible with a generic passive crossover 2 or 3-way loudspeaker alone, even with full round corner bass traps (have 'em). Even if one can afford something like the Rives PARC, it's nice to have it ONLY in the subwoofer signal path.