Isolation Transformer and Balanced Power versus PS Audio Regenerator

Jun 26, 2018
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The more power the better I think.
8 sockets to be occupied.

8 amps in 2 active speakers . (2 power cords) 600w each =1200w ( 800 VA)
Extreme from Taiko ( 400 VA)
Totaldac 24 that is 8 boxes solution (one powercord) ( total of around 250VA)
Totaldac Drivers 2 boxes ( 2 power cords) ( 100 VA)
2 external power supplys for USB and Eter Regen ( 2 powe cords) (150 VA)

So total trafos used is 1700 VA

Actually Kris, 'the more power the better' is not the case based on the research I've done. I was advised by a transformer maker that running a smaller transformer at 70% - 80% of its capacity will sound better. 213Cobra was advised something similar by the maker of his Hovland transformer. Perhaps Paul at ZAxis has a view on this?
 
Likes: JayDee

Rocco I.

Well-Known Member
Apr 26, 2012
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Italy
An excellent soulution is to use the outstanding Adyton Isovolt K6 balanced trafo plus the superb power conditioner Burmester 948.
 
Feb 4, 2020
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Hello Phil. It's several years since I corresponded with you about tube amps and speakers. At the time, you shared some great insights and advice which were very helpful indeed. My system now is similar to Keith R's which you have been involved with. I have different source equipment to Keith (TT + SUT + Tube phono and a CDP) but use the same MFA Baby Reference V2 Preamp into an Audio Research REF75SE driving Devore Gibbon X's. A system I'm perfectly happy with. My focus now is getting the very best out of it. And my power requirements are modest.

I purchased and tried 2 balanced transformers over a period of time. The 2nd one was a custom made Balanced 700VA EI Transformer (ie: not toroidal) made with high quality materials (eg OCC copper wiring etc). It's 700VA capacity was specified for my various source components, but I found I could also run my ARC REF 75SE amp off it without a problem. That gave me a significantly better result than any power regenerator or power conditioner I had tried until then. Not all my components benefited equally – it was my ARC amp and turntable that stepped up most with this Balanced EI Transformer in place.

Ron, to answer your question, you have to bear in mind that my experience of power regenerators and power conditioners was limited to Isotek and Nordost products. And my experience of the Isotek Genesis One Regenerator I tried was consistent with JayDee's comments above. It's over a year ago so I can't be highly specific, but I recall the sound being flat, bland, processed sounding and lacking in colour or naturalness. Like JayDee, I took it out of my sytem quite quickly and never felt the need to try it again. None of the power conditioners I tried did much for me either. I have since tried a Gigabyte conditioner whcih was significantly better than the other regenerators and conditioners, but not as involving as a well designed balanced power transformer.

Re the Z-Axis unit that Jaydee has, I read the posts by Paul of Z-Axis at length and flirted with taking a punt and buying one. But as I live in New Zealand, long distance shipping costs and exchange rates make it uncomfortably expensive. From Jaydee's comments, Paul's unit sounds very good and therefore a further demonstration that some Bal transformers are significantly better than others. Another UK brand I considered was Westwick which Spirit uses. They told me they use a Torus transformer in their unit, wound and made to their own specifications.

I ended up with a premium spec'ed power strip from Canada (Gutwire 8-Bar with Furutech NCF connectors) and that has given me the best results so far, more naturalness & colour which matter to me. But if I win the lottery, I may relook at a top notch Balanced Transformer from Z-Axis, Westwick or Torus in the future.
a good note. Exhange rates and locations impact hugely on decisions. My balanced unit is set up in a 4 digital 2 analogue and 4 ‘power’ configuration. This is designed to stop digital noise getting into my analogue or power equipment. Z-axis website, under Symetrica is the best place to look if you want some more information. Each to their own but I wont take it out and it has become the hub or heart of my system. In fact i like the analogy if it being the the heart because it literally supplies the blood to everything. All music from a system is just an electrical current so it makes sense to me to get that right. Anyway, here are a couple of better photos for those interested
 

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Feb 4, 2020
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that is very impressive.
pictures are great . Thx.
how much you paid for that gear ?
it was about £5,500 when i bought mine but he is on an SE version now withe NCF sockets and other enhancements so it may have changed. I recently tried an SE and will upgrade mine
 

LL21

Well-Known Member
Dec 26, 2010
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An excellent soulution is to use the outstanding Adyton Isovolt K6 balanced trafo plus the superb power conditioner Burmester 948.
Hi Rocco...very interesting. I just looked up your Adyton...seems quite beefy. Are you doing wall to Adyton to Burmester to equipment?

I literally just got the Torus AVR16 last week. Currently, they are setup:
Wall ---> Torus ---> Gryphon Mephisto and Nordost QX4
Nordost ---> Burmester 948 ---> pre/source

Is it true the Burmester 948 does not limit current in any way? Its what the manual says, enabling it to handle super big amps. For safety, the Mephisto goes into the Torus only...and this was after checking with both Torus and Gryphon manufacturing first...but I decided NOT to put the Amp into the Burmester.

Thanks for any insights.
 

bonzo75

Member Sponsor
Feb 26, 2014
13,323
2,766
460
London
Hi Rocco...very interesting. I just looked up your Adyton...seems quite beefy. Are you doing wall to Adyton to Burmester to equipment?

I literally just got the Torus AVR16 last week. Currently, they are setup:
Wall ---> Torus ---> Gryphon Mephisto and Nordost QX4
Nordost ---> Burmester 948 ---> pre/source

Is it true the Burmester 948 does not limit current in any way? Its what the manual says, enabling it to handle super big amps. For safety, the Mephisto goes into the Torus only...and this was after checking with both Torus and Gryphon manufacturing first...but I decided NOT to put the Amp into the Burmester.

Thanks for any insights.
Adyton is a brand of electronics made by the Norwegian distributor of burmester and gryphon.
 

Uk Paul

Member Sponsor
Sep 27, 2012
414
48
110
UK
Actually Kris, 'the more power the better' is not the case based on the research I've done. I was advised by a transformer maker that running a smaller transformer at 70% - 80% of its capacity will sound better. 213Cobra was advised something similar by the maker of his Hovland transformer. Perhaps Paul at ZAxis has a view on this?
Thank you all for the positive comments; all very welcome at this moment in time..

Part of the design of the Symetrica allows for the transformer loading to be monitored via the switchable displays on the Standard and SE models. As you load a transformer the output voltage drops, so we designed the transformers to run at parity at 65%, leaving some headroom for large dynamic swings. This mainly applies to the main large transformer that powers the amplifiers, with the source / low current draw transformers staying steady hence 300VA proving optimal. Another undesirable if using an over sized transformer is stray capacitance, so we tend to use the 1.5 and 2Kva in most cases.

Our website will be updated soon to include the 2 new models, SE and Nocturne..

Kris, we are in the process of doing the design for your transformer and will update once complete, with all the shuffling going on at the moment things are taking a bit longer..

Stay safe everyone..
 

LL21

Well-Known Member
Dec 26, 2010
11,126
252
283
Adyton is a brand of electronics made by the Norwegian distributor of burmester and gryphon.
No kidding...that is quite cool.
 

Kris

Active Member
Mar 4, 2019
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Thank you all for the positive comments; all very welcome at this moment in time..

Part of the design of the Symetrica allows for the transformer loading to be monitored via the switchable displays on the Standard and SE models. As you load a transformer the output voltage drops, so we designed the transformers to run at parity at 65%, leaving some headroom for large dynamic swings. This mainly applies to the main large transformer that powers the amplifiers, with the source / low current draw transformers staying steady hence 300VA proving optimal. Another undesirable if using an over sized transformer is stray capacitance, so we tend to use the 1.5 and 2Kva in most cases.

Our website will be updated soon to include the 2 new models, SE and Nocturne..

Kris, we are in the process of doing the design for your transformer and will update once complete, with all the shuffling going on at the moment things are taking a bit longer..

Stay safe everyone..
No problem waiting.
I will be testing Keces next week to see if balanced power in general is my cup of tea.
I am quite sure it will because there is VERY audiable difference during the day and at night.
Best starts after 10 pm.

Thank you Paul For info.
I cant wait to try your design in my system.
Would you be willing to elaborate a little more what additional ways of cleaning the power you use
except of 3 balanced transformers ?
How your design is different / better from many others in the market ?
Best
Kris
 

Uk Paul

Member Sponsor
Sep 27, 2012
414
48
110
UK
We keep it as simple as possible Kris, a DC filter of 16,500 uF is all that is required. The transformers do the rest. Start up is handled by a 2 stage process, a current limiting switch and direct switch in parallel. This proved better sonically than relays etc..

To my knowledge, no other unit uses multiple circuits, this is key to get the best out of the principle of balanced power, the improvement is not subtle either, and immediately obvious..

KR,
Paul
 

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