VANDERSTEEN 3 A SPEAKERS

I've been Vertically bi-amping my 3A Sig's for a few months now. I'm using a pair of McCormack DNA-1 DLX Golds with a McCormack TLC-1 DLX with outstanding results. I use the TLC's passive outputs to drive the mid/tweeter section and the buffered section to drive lows. You might want to read through the Vandersteen Q&A section there is some good information in there concerning this subject. When I get the chance I will dig the information up for you. But this mostly comes down to the equipment that you are using. P.S. Right now I'm experimenting with the McCormack MicroPre that has the Gold upgrades and its actually sounding better than the TLC, so now I'm thinking the TLC might have to go in for the Platinum upgrade.

Perhaps you could list your system components, with cables,room size,area rug?,power strip,
Best John

If the designer advises against it it probably is not a great idea.

I used the 3A Signatures a few years back with a pair of stereo Theta Dreadnaught I's. I used one amp for each side, left and right with 1 channel driving the upper section and the other channel driving the lower. After evaluating the sound over several weeks, I came to the conclusion that the sound was not as good as using a single Dreadnaught for both channels. For whatever reason, the sound seemed to become a little disjointed like the blend between the upper and lower sections was not right.
Changing back to a single amp brought everything back into focus and the speakers sounded better-actually, noticeably better. That ended my biamping. Biwiring is a must though. It is better.
I have heard that with these speakers, an oscillation can occur because of the characteristics of the crossovers with a biamp. Richard now recommends against biamping because of this possibility. I don't really know if that was in play with my system but for whatever reason it just didn't work out. So I sold the other amp.

Biamping is not a good idea with Vandersteen speakers, especially with solid state amplifiers which can become unstable due to the capacitive load of the mid/tweeter crossover.

What is recommended and is superior to biamping is adding two 2Wq powered subwoofers to take over the deep bass. This is going to add 300 watts per channel of power where it is needed most and simultaneously free the 3A Sigs from a tremendous burden in the low frequencies.

I am a Vandersteen dealer.