J&K Ultra Isolation Power Transformers - review from Steve McCormack

Howdy J&K followers! I hope everyone is doing extremely well and healthy in the COVID19 pandemic situation. 

We've been quite on the postings as life is really tough nowadays, juggling between pandemic, work/operations, and family. Therefore, those that are are less important, will be temporary put on-hold. Let's hope that the pandemic will be over soon and everyone can get back to their normal daily life. 

Meanwhile, we do have a GREAT news to share with everyone here. We have recently provided Steve McCormack from www.SMcAudio.net with our Level 3 Ultra Iso Power Transformers for his high performance solid-state monoblock amplifiers. He wanted the best for his customers and he got the best - a pair of state of the art power transformers made with OCC (Ohno Continuous Cast) Silver wires! 

Those who wished to have a look at the actual post, please hop on to our J&K Facebook page to check it out: https://www.facebook.com/groups/jnkaudiodesign

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Hello friends of J&K Audio Design,

This is Steve McCormack writing from California. Some of you may know me from my work as an audio equipment designer, going back to McCormack Audio and The Mod Squad (long ago!). I have had my own small business for quite a while now, SMc Audio (SMcAudio.net), doing custom upgrade work on my earlier equipment and a few new pieces along the way (like my VRE-1C preamplifier and the AC Nexus power distribution and ground enhancement system). I was fortunate to recently receive a commission to build a new set of monoblock amplifiers for a client who wanted the very best work I could deliver. As part of the project, I started looking for a company that could build a set of power transformers that went well beyond any I had used previously. I am happy to say that this led me to J&K Audio and Mr. Ken Loo, who appeared to have the right sort of understanding of transformer design and the quality goals I was looking for.

Once I had let him know what my requirements were, Ken suggested his Level 3 Ultra Isolation Transformer as the best approach, so that is what we went with (configured for my amplifier, of course). My client wanted the best-possible performance, so I requested that these special parts be wound with high-purity silver wire, and that is what Ken has delivered (see photos below).

I have been building high-performance audio equipment for many years, and have done my best to source the best parts available that contribute to improved performance. I have built a lot of amplifiers and used a lot of custom transformers from well-known suppliers around the world.

Nothing I have worked with previously prepared me for the degree of superiority Ken's transformers have delivered. The sense of “you are there” realism took a major step up, along with the level of dynamic expression and engagement that I value so highly. In addition, these transformers are totally silent mechanically, and of course the degree of isolation from AC line noise is outstanding.

It may be difficult to appreciate how much sonic impact transformers with essentially the same electrical specs can have, but I assure you that the effect is very audible.

I have to thank Ken and the J&K Audio Design team for building such a superior product, and I want to urge the other fans here to consider using these transformers in your systems. From my experience, I would say that when it comes to custom magnetics for audio, Mr. Ken Loo and J&K Audio Design are the right people to work with.

Thanks again for your outstanding work on this project, Ken - it is much appreciated.

End quote

For those that are interested to know more about Steve McCormack and his gears, please head to his website www.SMcAudio.net. 

For those who like to know more about our Level 3 Ultra Isolation Power Transformers, please check out the links below: 

https://jandkaudiodesign.blogspot.com/2017/05/ultra-isolation-power-transformer.html

https://jandkaudiodesign.blogspot.com/2020/09/the-best-power-transformer-for-audio.html

https://jandkaudiodesign.blogspot.com/2016/06/isolation-transformer-bandwidth.html?m=1

https://jandkaudiodesign.blogspot.com/2017/05/ultra-isolation-power-transformer.html

Our Level 3 Ultra Isolation technology can be used in any audio gears, ranging from power transformers for solid state / tube amplifiers, to DAC or CDPs, or anything you can think of that needs power transformers. It can even be used as a standalone isolation transformer, which it was originally intended for. If you want the best of the best power transformer, look no further. 

For bargain hunters, we do have our Level 1 and Level 2 transformers that are very good in performance tooo, and is at a lower price range. Although it is our lower range products, our Level 1 and Level 2 transformers are still better than those general or even audiophile quality transformers.

Try, and you shall see. Warning - there is no turning back after you've tried our Level 3 ultra iso power transformers. They are really that good, period. 

Take care everyone, and stay safe!

J&K Audio Design

19/1/2021

UPDATE

After reading this exciting REAL USER feedback, are you excited to use our power transformers in your designs to reap the benefits not available elsewhere? We are the only one producing this for now and cannot be found elsewhere. 

We are looking for only 1-3 partners or distributors, as phase 1, due to our limited production capability, to use our ultra isolation power transformers in their finished goods. 

There are thousands, if not tens of thousands of audio equipment manufacturers out there. If you want your products to stand our from others, sound better than others, and be the best in the industry, please contact us now to be considered as our 3 sole early adopters. 

We will consider opening for more but it is not decided yet as of now, and may be a few years down the road. Your application of our ultra isolation power transformers can be made known, or classified, your choice. 

Thank you!

J&K Audio Design

6/2/2021