John Jeffries


Music reproduction of the very highest quality

STRATOSPHERE MK 3 at Northampton Hi-Fi Show 2021

STRATOSPHERE MK 3.  At the recent Northampton Hi-fi show the latest Stratosphere was on demonstration and received great interest and enthusiasm.  Coupled with several other manufacturers, Bladelius, Puritan, Lyravox, Quadraspire, My-Sonic, Primary Control etc, the Stratosphere put in a great performance and at its first outing at a show since its substantial upgrade it was received with great praise.  Now with a completely new and highly specialised bearing coupled with an updated power supply, superior component material offering substantially improved record support and control, the Stratosphere MK3 raises the game to a whole new level.  Call me for details and information about a couple of prototype specials at a much reduced price or take the plunge, a new Stratosphere is a lifetime turntable standing up against the world’s very best

Being involved in the music industry for over 50 years, I have now reached a time when certain products satisfy my domestic music desires and although moving into retirement, I am still overwhelmingly interested in music and the very best way to produce it in the home. I have worked with hi-end products for most of my time in the industry and have retained a connection with some well respected products that I am still able to work with offering sales, service and advice of the very highest quality. I have assembled a small portfolio of products that offer truth, reality and are just able to play music naturally and musically. If I can be of any help tuning your system or providing an upgrade I may just have something within my portfolio which incorporates a few products that I believe are some of the best products available today.

I can offer advice on room tuning and getting the best from your personal listening environment. Also as illustrated on the web site, I am re-launching the Lumley Stratosphere in a Mk 3 version which truly takes it to a new level. It has a new bearing, motor and power supply rendering it to be a great challenge to some of the other top turntables available today. It is still the quietest I have heard. Coupled with Graham, Morch or My-Sonics, I am sure you will be pleasantly surprised. Come and have a listen to some of these products, I’m sure you will enjoy a session in my music studio which was described by Hi Fi News some years ago as ‘a near perfect listening room’, on whatever music be your choice.

John Jeffries, Sussex Music Studio


From the magician of the hi-fi world.  Cables that rival the best and room tuning that startles and bewilders.


Both these fine examples of the best engineering possible produce the best sounds from vinyl.


Both these fine examples of the best engineering possible produce the best sounds from vinyl.


A great range of turntables keeping vinyl where it should be, a number one choice.


A rare and beautiful line up of the very best in electronics.  True reference products now accepted the world over as right at the top.


I started working with this company some 35 years ago.  An all valve alternative then and still revered as one of the best valve products available today.


A new comer in electronics.  Another great contender for the top spot.  Come and make your judgement.


Speakers that look different and sound different but they play music as it should be.


Based on the original Supex designs, they still produce the most natural, dynamic and musical sounds around.


Great equipment supports with great performance and looks to boot.


My designs of loudspeakers and a turntable.  Still available, still surprising.
The Strat returns!
Read more…


Second hand Stratosphere
A prototype unit for sale that is a superb example of one of the best made UK turntables.
Read more…

As mentioned in this website my semi retirement has restricted me to be involved in just a few specialized lines, Ypsilon, Liveline, Stratosphere, Mysonic, Morch, Graham, Audiopax etc which are great Hi-End products commanding respect and a following above most others. However, I have been looking at new more affordable product for the general market and have decided on a range that I have been studying and evaluating called Valvet and I am excited to bring this to you should you be in the market for an upgrade. Please take a look at and you will see some impressive products across a complete range. More details soon.


Just about the most hyped components in your hi-fi system with innumerable makes, types and performance claims that challenge the sceptics to test their patience. However, I have worked as noted with Liveline cables for some 15 years and still find their performance easily justifiable when an easy improvement is targeted. The relatively new Reference series has now graced my system with just that substantial improvement most of us are looking for. However, I had not tried the latest Reference mains cable till recently. Astonishing is the only adjective necessary. I have experienced many different cables over the years including some highly rated mains cables with some good effect but now the margin has widened. On trying just 2 of these mains cables in my system I am astonished how much they have lifted the performance. Greater detail, more black and white, more silence and transparency and just what I had been looking for to take my system to a new level. It comes at a price, £1325 for a 2m piece, but I am offering a full money refund (less postage) if it doesn’t do in your system what it has done in mine, and at a special opening price too of £850. Still a lot of money ? It sure is but so is your hi-fi system and if you’re at this level, it will surely be worth it. Call me to take advantage of this special trial offer.

Here is one of my customer’s very special systems, comprising:


And the sound ? PDG!


“In 40 years of HiFi I’ve never enjoyed listening more. John’s system building and room tuning advice has been invaluable. The upgraded Strat? Simply the most natural and dynamic record deck you’re ever likely to hear. Brilliant!”
– PH, A very satisfied customer.


As mentioned on the Stratosphere page concerning the re-launch, I have one unit pictured here for sale at under half price.  This example is using some of the old updated components and some new but all are in the latest standard sonically with the resulting performance right up to a completely new version.  This unit has a new bearing and power supply, new motor with electrically controlled sensor, a new top record support platter and new ‘Air Pod’ suspension pillars.  It comes complete with stand but without pickup arm and cartridge which can be supplied extra.   The performance is superb, absolutely identical to a brand new version but at under half the current retail price for a new unit.  It can be installed anywhere in England FOC or shipped world wide at extra cost.   Come and audition this amazing turntable, you will be astonished. Available with gold or silver flywheel.