View attachment 97914Something of a delayed mini-‘review’ here, unfortunately a family bereavement meant that much of the summer just disappeared on me. But life is returning to normal somewhat, and this experience is really something I had better write about.
Not quite sure this thread is the best location for it but given it’s been a place for discussion of the Jays Audio CDT2, it’s probably appropriate.
Up till this summer, I ran an Audio Note CDT2/II transport for over 10 years. But a major DAC overhaul about two and a half years ago (just before Covid struck) left me thinking I needed a transport upgrade as well. I was aware that Audio Note have been planning to release a belt drive transport, also to be provided as a retro-fittable upgrade to owners of Phillps CD Pro 2LF-equipped transports, such as my CDT2/II. But this seems to have got stuck in the mud – not sure whether the issue is reliability, or troubles with productionising the necessary elements, but it’s been repeatedly pushed back for a couple of years now. In the end, I gave up on it and started looking at other options.
First up was a CEC TL1N, freshly refurbed from a trip back to CEC in Japan. Given the still chunky price tag even at its age, this was a crushing disappointment, lacking the purity and solidity of the Audio Note. I later tried out the CEC TL2N – a much later, current, model. This was much better, but still not a worthwhile improvement on the venerable Audio Note, albeit worthy of consideration if I didn’t already own a machine of similar capability. So also was returned. Back to head-scratching.
Then a quite reasonably-priced Jay’s Audio CDT2 Mk 3 popped up, being sold by an old acquaintance. Relatively cheap compared to the CEC boxes, it seemed (from other threads) to play way above its price point, and also to have a lot of modding potential. I went for it.
First impressions weren’t great – it didn’t like my balanced mains unit, and the result was pretty underwhelming. But with this out of the loop, pretty much out of the box it was the equal of the Audio Note, which I must say surprised me. Clarity, detail, richness of timbre, decent timing – all there. Also interesting to see a vintage swinging-arm transport – a Phillips CDM4 – in there – something I always associated with musicality over more clinical considerations. It came with a spare transport too, all prepped and ready for dropping in. Given I’m mainly a viny guy though, I’m pretty certain the original one will see me out. Great to have it tucked away for emergencies though.
So the Audio Note was sold, and thoughts turned to tuning the Jay’s. I was vaguely aware of a replacement puck being available, replacing the Jay’s rubber-backed, carbon fibre version with something seemingly made of a bone-like substance. It turned out another hifi acquaintance in the UK had bought one of these for his own Jays Audio CDT2. He brought it round. Quite honestly I was gobsmacked. Looking back at an email about it I read that I described the improvement as ‘both instant and quite dramatic’. I’m naturally quite sceptical about magical bolt-ons, especially if I can’t figure out the mechanism – how can a puck possibly make a difference in the digital domain? But there it was. My wife concurred: ‘No contest. Order one!’
So this brought me into contact with Mike Christ, of Headquarters Audio in Germany. Though I’ve only exchanged a few emails with him, it seems Mike has emerged, fully-formed as one of the hifi industry’s great one-offs – a true character that shows Germany can throw up passionate, engaging eccentrics just as well as the English can. (Full disclosure: I’m Scottish). He has a
youtube channel that is definitely worth a look, and there you can hear about his philosophy, which seems mainly concerned with minimising damping in most circumstances, allowing natural vibration to occur.
So I duly ordered my own ‘QStab’ puck, as well as a suspension modification for the Jays Audio CDT2 made of similar material, complete with custom springs to match. Installation is a bit of an act of faith – while quick and straightforward, the original damping material all needs removing before the new bits can be fitted, meaning there’s no return to the status quo ante if you don’t like the result.
And the result? Dramatic doesn’t cover it. Confirmed by a visit from a couple of guys who have known my system very well over many years (both member here actually). I noted the words ‘insane’, ‘instant’, ‘dramatic’ and ’shocked’ – which kind of captures the mood. For the price, it’s a no-brainer for any CDT2 owner, and also any owner of a Denafrips Avatar, which uses the same CDM4 drive unit.
I did take a couple of youtube clips with my iPhone, I can hear the difference, but I know what I’m listening for .. hopefully may be useful to others too. Incidentally, I discovered in the process of ordering the Qstab that Mike also has a turntable mat and LP stabiliser in the works which applies similar principles to the analogue domain. Watch out for a write-upon that too.
Without QStab and suspension mod:
With Qstab and suspension mod: