Isolation power transformer

Sorensen

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Feb 20, 2020
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Hi. I am a very happy owner of Diablo 120. I changed to gryphon this summer after a short try with devialet expert pro amplifier.
Have any of you any experience with isolation transformers?. Saturday i will try out torus TOT max.
 

cuntigh

Well-Known Member
Dec 20, 2014
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FRANCE
Torus for me. Great. A friend of mine has the Accuphase PS500 for many years. Another one has the PS1210 and both have complete satisfaction.
 

LL21

Well-Known Member
Dec 26, 2010
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In our case, we found that, despite having a Burmester 948 and Nordost QX4, the TorusAVR16 cleaned up a sense of grunge across the board, a further dimunition of perceived mechanical effort to reproduce sound...and another significant benefit was a completely unexpected improvement in upper bass transient clarity, snap. We run the sources through the Nordost/Burmester which then goes into the Torus. The Gryphon goes straight into the Torus...and we did that ONLY after first checking with Gryphon in Denmark and Torus in Canada who reviewed the specs of both the AVR16 and the Gryphon Mephisto.
 

Mikem53

Member
Oct 1, 2020
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I use a BPIT , Balanced power isolation Transformer. It works by CMR , Common Mode Rejection, physics.. not snake oil.. Very effective in lowering the noise floor of all your gear via CMR.
I have used Equitech Q series and now a Equi-core 1800 which is less expensive and just as effective.. IME..
 

tony22

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Nov 4, 2019
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I was reading on another site the feeling that much smaller BITs, at each source device, is supposedly better than running a large BIT, believing that smaller current BITs would be better for transient current delivery.
 

Mikem53

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Oct 1, 2020
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I was reading on another site the feeling that much smaller BITs, at each source device, is supposedly better than running a large BIT, believing that smaller current BITs would be better for transient current delivery.

My understanding is it’s better to have a larger transformer to handle transients as the larger coils are saturated with electricity on hand to handle transient demands.. According to Martin G, founder of Equitech and several white papers on the subject.. I have everything plugged into my BPIT . Total load with Class A power amp and other components is approx 320 watts.. So lots of headroom on hand for transients..
 
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tony22

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Nov 4, 2019
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Thank you, yes. I remember now having seen the Equitech writings about this.

I don’t know if I ever got an answer to the question as to whether installing a whole house BIT was against code in the U.S.
 

LeBlanc

Member
Aug 14, 2019
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The Netherlands
My understanding is it’s better to have a larger transformer to handle transients as the larger coils are saturated with electricity on hand to handle transient demands.. According to Martin G, founder of Equitech and several white papers on the subject.. I have everything plugged into my BPIT . Total load with Class A power amp and other components is approx 320 watts.. So lots of headroom on hand for transients..
Manufacturers seem to disagree on this. Others such as PliXiR and Mudra Akustik claim it’s better to isolate components separately by their own IT. Audioplan from Germany also takes this approach with the addition that all separate ITs should be connected to the same power strip. I‘m not a technical expert myself on this matter, so I would be interested if others with more knowledge in this field could chime in.
 

tony22

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Nov 4, 2019
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Hmm...
 

Mikem53

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Oct 1, 2020
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Manufacturers seem to disagree on this. Others such as PliXiR and Mudra Akustik claim it’s better to isolate components separately by their own IT. Audioplan from Germany also takes this approach with the addition that all separate ITs should be connected to the same power strip. I‘m not a technical expert myself on this matter, so I would be interested if others with more knowledge in this field could chime in.

much of the info I received was from Martin Glasband , the founder of Equitech and he is credited with bringing BPIT to the high end audio world. I realize balanced power has been around before that..
The ”Q” Equitech transformer was about 70lbs alone For the 20 amp unit.. I owned it for 23 years before I moved and went to a 15 amp unit.. I can attest to the low noise floor and never Lacking for power..
I ran 2 BAT VK75SE monos and source on that Equitech on a dedicated line.. It was rock solid and never noticed anything lacking. IME. At the time many power conditioners were becoming popular.. I went for the BPIT based on the CMR principle and its simplicity.
 

Mikem53

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Oct 1, 2020
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Thank you, yes. I remember now having seen the Equitech writings about this.

I don’t know if I ever got an answer to the question as to whether installing a whole house BIT was against code in the U.S.

not sure.. The person who bought mine broke it down and mounted it in the house panel for his audio circuit. This saved him the space in his listening room.. some things don’t work well or at all in BPIT’s .
since the line is 60/60 vs 120/0. All my audio gear has worked fine and with a very noticeable improvement in the noise floor and the way the music emerges from a dark background..
 

Mikem53

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Oct 1, 2020
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Noticed Your VS speakers... Very nice.. Sad to hear of alberts passing not that long ago.. Was a friend of mine for many years.. I had his Flagship VR7’s for 18 years.. Very nice gear and Albert was great to talk audio with.. RIP..
 

tony22

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Nov 4, 2019
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I’m sorry to have met Albert only once at a show. He seemed like a good fellow. The E SE’s are quite nice indeed. Did you move on from VSA to Daedalus? Why did you decide to go in that direction? I’ve met Lou many times at shows, and use some of his isolators. I like his stuff.
 
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Mikem53

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Oct 1, 2020
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I’m sorry to have met Albert only once at a show. He seemed like a good fellow. The E SE’s are quite nice indeed. Did you move on from VSA to Daedalus? Why did you decide to go in that direction? I’ve met Lou many times at shows, and use some of his isolators. I like his stuff.

I had a dedicated room when I had the VSA speakers.. I downsized about 6 years ago and needed something “less“ in mass to fill my needs.. So I let go of the big stuff and started on another audio quest.
I tried Focal, but not for me.. I wanted something efficient to use with tubes/low power, but not horn based..
Daedalus looked great spec wise and from a bespoke perspective.. Very pleased with them.. Not quite the projectors the VR’s were, but they certainly are easy to listen to and look at..
 

tony22

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Your observations about Daedalus mirror mine. A sound you can listen to for the long haul, and a beautiful bespoke appearance.
 

Al M.

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Sep 10, 2013
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Manufacturers seem to disagree on this. Others such as PliXiR and Mudra Akustik claim it’s better to isolate components separately by their own IT. Audioplan from Germany also takes this approach with the addition that all separate ITs should be connected to the same power strip. I‘m not a technical expert myself on this matter, so I would be interested if others with more knowledge in this field could chime in.

I use isolation transformers only for source components, all my digital and the preamp, because of potential loss of dynamics. I have two 1000 W transformers from Tripp Lite and a minimum load on each (6-7 % of max consumption load of 1000 W). I found that separation of the preamp from the digital source (CD transport, reclocker, DAC) in terms of AC pollution, by having the preamp on one transformer and the digital source components on the other, gives a cleaner, more resolved sound in my system.
 

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