OTL Amps and ProAc Speakers


Does anyone have any experience with OTL amplifiers (specifically a Graaf GM20) driving Pro Ac 1SC monitors? Thinking about switching out my Audio Research VT-50 for the OTL route. Any OTL advice would be greatly appreciated.
jla

Showing 1 response by wellfed

Judging from my own experience I think many here would really appreciate serious performance gains by using a product called the ZERO autoformer. Information regarding these is available at http://www.condor-connection.org/asog/tweaks/ps/zero/index.html

I use Atma-Sphere M60 amps, and my speakers are N.E.A.R. 50Me II's. They have a nominal impedance of 8 ohms and I am told they do not dip below 6.5 ohms. It was amazing how much the ZERO's improved the performance in my system. They were a MAJOR upgrade. I have the autoformers connected directly from my amps to my speakers, bypassing speaker cables entirely.

Another product in my system I highly recommend is Walker Audio High Definition Links Mk. II. If you try these out be sure to get the Mk. II version.

It is phenomenal how much congestion was removed with these products, especially the ZERO's. I can not imagine anyone being disappointed with either.