Despite already having a dedicated mains supply, with a single consumer unit feeding my audio system, and individual tails from the consumer unit to silver-plated sockets behind each piece of equipment, there is a definite benefit to simply using the PSM136 and running everything from that instead. The sound is blacker, more spacious, more detailed, less harsh and more musical, rhythmic and enjoyable. It’s not a night and day difference, rather one of those subtle but profound changes that benefits everything and not just one particular characteristic like the soundstage, making the sum much greater than the parts – if that makes sense. Not only that, but the occasional transformer hum has disappeared, and it still times well and has lost no element of dynamic tension. I use a Naim preamp and, contrary to perceived wisdom, it has worked extremely well. The system works well at all times of day, not just in the late evening. In short, the PSM136 does what it says on the tin!
P.E., Devon
Just to let you know how I am getting on with my PS106-DC and power leads. Obvious stuff first, well packaged, ,came when you said and looks a quality piece of kit. Connected it up to my Cyrus PrQx PreAmp, Cyrus200 stereo Amp and Marantz SACD (no earth), Immediately the music sounded full bodied but lost a bit of detail very listenable. I have a Cyrus PsXr which I tried in and out but left it in sounding slightly better. Here I am a few weeks later the detail has returned and some, and combined with the full fat sound the music has gone to a new level incredible product at any price a bargain! Thank you sorry for the non HiFi descriptions its hard to put into words the improvement in sound.
C.C., Barnsley
PSM136: I promised to give you some feedback following the purchase at the recent Bristol show. If you recall I had two issues intermittent mono-block amplifier hum and low level speaker buzzing.

Having had the Mains purifier in the system for a few weeks both issues appear to be resolved so far.

I was concerned that the unit might have some dampening effect on the sound also, but on my system the following is what I can hear:

1. The bass has improved both deep and tight

2. The midrange is much more focused with bigger better sound stage

3. The edge on the treble is less and far more detailed

And now the annoying bits:

1. I find I can’t help turning the sound up even though I know I have gained more db than previous, this is annoying the family.

2. The really annoying bit is that critical listening is really hard, I keep getting drawn into the music after a few moments.

I will caveat the scale of the above improvements which I think may be having a greater effect on my system as it now nearly ten years old but it has never sounded better and this is probably the best tweak to date.

As an engineer I hope you find the feedback helpful, thanks for making such a good product. I have attached a photo of the unit in the system rack you may find the context useful.

M.H., Newport
PSM136: I received my new toy and it is all up and running. I really do like the build quality. Have you had any Hi Fi Magazine take a look at your Multiple Mains Purifier and given a review, as I think it is bloody marvellous.
A.E., London
PSM136: A very fine unit – Works as described.
W.M., Dorset
It was as if I had been looking through dirty windows and suddenly had them cleaned.

It just works; improving sound quality no end with the bass extension increased by quite a lot.

It has moved the audio quality from my (All Naim) system to somewhere I am now really happy with.

D.C., Reading
Just to update you on my thoughts on the PSM136. It’s definitely a keeper!

Having had some time now to do a bit of serious listening, the improvements brought by the conditioner are clear. The most obvious & immediate improvement is in the sound staging & the bass. The sound is more detached from the speakers, wider & deeper front to back. This seems to give the music more flow & naturalness. With the bass, more clarity tone & shape & the impression of going deeper than before & my system was very clean in the bass prior to the conditioner going in.

More subtle improvements are better decay of sounds, small details/cues are more apparent & easily heard. With music that has a lot of stereo panning of sounds, in particular electronic music the sense of the music moving around & between the speakers has improved greatly which was a nice surprise as didn’t see that coming.

Overall the conditioner has lifted every area of replay, some in more dramatic ways than others but this is an across the board improvement with no negatives at all. Even some of my less well recorded music, of which I have plenty is more satisfying albeit you do wish it had been better recorded in the first place. You can just hear deeper into the mix which makes for a more satisfying listen.

I am still throwing all sorts of music on & hearing more texture, more relaxed & just better music!

I could go on but I won’t & as I said it’s not going back.

It’s easy these days to complain when things go wrong or service is bad etc. but praise where it’s due, & that’s certainly the case here . Obviously I have not tried the high end/high price units available from other manufacturers but pound for pound against the improvements the Puritan has brought, in my system it’s a no brainer.

I should also mention my background is electrical engineering; installation of domestic, commercial etc. As a result my system is served via a dedicated, fully screened 40Amp radial circuit from distribution board to socket as plus RFI earth stake serving Hi Fi only. Even with all this, the Puritans improvements are as clear as day.

Another point of note is the mains lead supplied. From a performance perspective I cannot really comment as I have not switched between cables I already have, but from an ease of installation & dressing the cables point of view, what a pleasure. Absolute piece of cake as opposed to battling with stiff, don’t want to bend, awkward mains cables so I may be back to you in the new year for some more to serve my existing kit.

T.D., Crawley
The power cable is very fast and very dynamic, both very positive features in my book

The Guardian has mellowed the sound of the radio system, more autumnal and a thicker sound, Brahmnsian! Before it was brighter and more forward, with a chromium metallic flavour.. Response: definitely clearer! The sound was good and is very listenable as you say.

The computer is still running more smoothly than usual and on Saturday night the radio three music stream only dropped out once for a couple of seconds, but it corrected itself. Normally it drops out after about one hour and needs to be reset. Whether this is down to the Guardian plugged into a different main on a different floor, I leave you to judge. It certainly is an amazing co-incidence it if it is not the influence of the Guardian.

I have just asked someone reasonably familiar with the kitchen radio sound (Pure DAB tuner digital output into DPA Dac, Heed Obelisk amp Eikos speakers) whether he noticed any difference. Response: definitely clearer! The sound was good and is very listenable as you say.

D.F., London
PSM136: The high frequencies in particular have cleared up considerably. There is more zing and shimmer to cymbals and other high frequency instruments. I noticed that there is also less overhang on double bass and more definition of the specific timbre of the instrument and the players fretting etc.
A.L., London
The power cable is very good, deeper and tighter bass and a very clean and clear presentation, allowing micro details at the back of Jazz recordings and pianissimo trumpets and horns in big orchestral pieces to be more easily discerned. The soundstage is bigger and more solid.. I also should add that the power cable is very fast and very dynamic, both very positive features in my book.

The general blur in the large acoustic has clarified, and the instruments have become clearer. In the American in Paris piece there is a lot of percussion, played with devastating precision by the orchestra. I have never heard it so cleanly as with your cable. Also the clearer lower strings showed me rhythmic patterns which I had never noticed before in many listenings. You have got something right.

D.F., Shooters Hill
I am more than happy with the PSM136 , music is more enjoyable. It has taken the edginess off of vocals making them sound much more human.
K.H., Norwich
First impressions of the PSM136 are quite positive. There is a distinct increase in treble (which I was looking for), possibly at the expense of a slight loss of bass – but this could be due to the change in the main mains lead or the fact that I have been playing music with a treble bias.

I will monitor the performance of the PM136 over the next few weeks and would be more than happy to provide feedback when I am more certain as to the exact changes. Should I expect any changes due to a burn-in period, or do you expect the results to stay the same?

Many thanks, I am delighted with my purchase.

N.H., Reading
PSM136 Arrived in excellent condition.

My first thought upon unpacking was “how do you deliver so much kit for so little??”

I am totally pleased and it is one more item I can cross off my wish list.

An extremely satisfied customer.

A.C., Hawaii USA
I normally would have waited longer as I am sure the PSM 136 will continue to improve, but I have heard enough to characterise its essence of its effect on my system.
Firstly, the soundstage is marginally bigger and wider (no slouch there already). The sound has a refinement and mellowness which shows the beauty of the 300b system which I have not encountered to this degree before. Relaxed and non-fatiguing. Paradoxically there is an extraordinary precision to the sound articulation, both in the starting and stopping of notes and instruments, and in their dynamic level. Stravinsky used to work for hours on orchestras to get clarity in the articulation of dynamic levels, he would be impressed here. The lack of smearing reveals many details and notes behind the notes, an X-ray of the score perhaps, which I had not noticed before, even in fairly reverberant acoustics. I noticed this effect with your power cables before but here we are on another level altogether. This precision is in no way mechanical but allows for startling dynamics where required which says to me there is no inhibition in current delivery through the PSM 136.
I have tried many genres of music from Josephine Baker, Billie Holiday, Bruno Walter’s Bruckner, George Szell’s Beethoven, Antal Dorati’s Respighi (often fierce sounding but much sweeter with the PSM 136) Boston Pops, all invariably a fresh an often-thrilling experience.
Congratulations and thank you; a beautiful device in every way and something of hi-end bargain given that it is less than half the price of the filter it replaced which it trumps in every respect!
D.F., Shooters Hill