Biamping with a pair of 2 ch amps....

I used a pair of Hafler DH-220's in "Option 2" configuration for a couple of years. I preferred the sound to "Option 1" but I've since changed to a single DH-500 and prefer the single high power amp sound.

Hello,
I would run them in the vertical bi-amp setup,hookup #1. This is one amp for the left speaker and one amp for the right speaker with one channel for the highs and one channel for the lows. This will give you better stereo seperation like having mono blocks but better.


Cheers
Bob

I biamp my Linn speakers using horizontal biamping, which is what Linn recommend. For Vandersteen, I would give great respect to what Mr. Vandersteen says, as noted in the post/link above.

For your application try both and see which you like. There are (or should be) some differences.

Although you have identical amps, horizontal biamping allows you to try some interesting things by using different amps. For example, you could put a more powerful amp on the bottom for greater woofer control. Or you could try mixing tubes and solid state for top and bottom. Just make sure the gain is the same if you experiment in the future using different amps.

Thks to all...I skimmed the Vandy FAQ and the most applicable Q seems to be in reference to trying this with a multi-channel HT-type amp which Mr. V discourages and suggests more suitably matched 2-ch. units...I think the NADs are more than capable in this app...will just take some experimentation to find the right combo as everyone suggested...glad also to learn the "horizontal" and "vertical" nomenclature!!!...I may try to repost the question on the vandy site, but will more than likely just experiment a bit and draw my own conclusions...after all...it is the trying out of different combinations and configurations that draws me to this hobby...almost as much as finding a satisfying result!!!