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When the Entec AC line noise analyzer showed me just how dirty even my dedicated 20amp circuit was, I became very interested in power. Clean AC without restricting frequencies is the goal. But also, I feel that consistent clean power is also very important - especially to sources and in particular, digital sources.
I will admit, I was ready to sell the VAC amps. They were sounding awful. Bright and overly sibilant. I tried them upstairs (dedicated 20amp circuit) and downstairs (regular old house line). They were worse downstairs.
It wasn't until I knew my AC - even my dedicated AC - was dirty did I put two and two together and realized that point to point wired tube amps might just be the most susceptible to dirty AC. Amps like VAC and Jadis and many other P2P tube amps which don't have their own massive power plant and circuit boards and other technology built in to filter out bad AC, combined with tubes which seem to simply amplify dirty AC, are easily the most affected by dirty power IMO. Big SS amps like McIntosh, Boulder and Krell don't seem to be as affected by dirty AC.
Back to the VAC amps.....I dusted off one of my APC S15's. The APC S15 and S20 are monsters. They are the size and weight of a big power amp. They are APC's answer for high end audio and video for clean, protected, stable AC. I plugged both VAC amps into it and talk about going from worst to first! The difference was so over the top better that I couldn't believe what I was hearing. Blackest backgrounds. Super smooth on top. Tighter bass. Better midrange. If the Entec measurements didn't convince me, listening to the "new and much improved" VAC's did.
I spent the better part of the week talking to people I know and trust. If I spoke to 10 people, I got 10 different answers.
It appears that there is some consensus - power regeneration is best only on digital sources, power conditioning (my APC, Torus, Bryston BIT-20, etc.) CAN rob you of some dynamics (personally, I don't buy it if implemented properly) and third, the Shunyata way - which appears to be proprietary and has a lot of supporters.
As for properly implementing power conditioning, I found that when I plugged both power amps into one APC S15, I retained all the dynamics and gained blacker backgrounds and all the benefits mentioned above. But when I dusted off my other S15 and plugged one amp into each power conditioner, I was robbed of some dynamics.
I have recently purchased the MIT Z Super Duplex outlets as a start and hope to have them in my system next week. I believe settling on a power foundation will involve some trial and error.
What do you use for conditioning, regenerate and/or stabilization of voltage?
Sent from my iPad using Tapatalk HD
I will admit, I was ready to sell the VAC amps. They were sounding awful. Bright and overly sibilant. I tried them upstairs (dedicated 20amp circuit) and downstairs (regular old house line). They were worse downstairs.
It wasn't until I knew my AC - even my dedicated AC - was dirty did I put two and two together and realized that point to point wired tube amps might just be the most susceptible to dirty AC. Amps like VAC and Jadis and many other P2P tube amps which don't have their own massive power plant and circuit boards and other technology built in to filter out bad AC, combined with tubes which seem to simply amplify dirty AC, are easily the most affected by dirty power IMO. Big SS amps like McIntosh, Boulder and Krell don't seem to be as affected by dirty AC.
Back to the VAC amps.....I dusted off one of my APC S15's. The APC S15 and S20 are monsters. They are the size and weight of a big power amp. They are APC's answer for high end audio and video for clean, protected, stable AC. I plugged both VAC amps into it and talk about going from worst to first! The difference was so over the top better that I couldn't believe what I was hearing. Blackest backgrounds. Super smooth on top. Tighter bass. Better midrange. If the Entec measurements didn't convince me, listening to the "new and much improved" VAC's did.
I spent the better part of the week talking to people I know and trust. If I spoke to 10 people, I got 10 different answers.
It appears that there is some consensus - power regeneration is best only on digital sources, power conditioning (my APC, Torus, Bryston BIT-20, etc.) CAN rob you of some dynamics (personally, I don't buy it if implemented properly) and third, the Shunyata way - which appears to be proprietary and has a lot of supporters.

As for properly implementing power conditioning, I found that when I plugged both power amps into one APC S15, I retained all the dynamics and gained blacker backgrounds and all the benefits mentioned above. But when I dusted off my other S15 and plugged one amp into each power conditioner, I was robbed of some dynamics.
I have recently purchased the MIT Z Super Duplex outlets as a start and hope to have them in my system next week. I believe settling on a power foundation will involve some trial and error.
What do you use for conditioning, regenerate and/or stabilization of voltage?
Sent from my iPad using Tapatalk HD