I used one on my Garrard 301 with excellent results
I had a Funk Firm Achromat on my TT for a few years and was very happy with it. But a couple of weeks ago
I Goggled TT mats and can across some reviews for the AP-UD1.
They were all very positive but the funny thing is that they were all from Australia, Japan, Singapore etc,
none from the US, Canada. Upon further research I saw that these were not available from any retail location in
North America only Japan where these are made.
As stated the reviews were all glowing with some saying that it improved the music by 20%. One other thing to mention is that all the reviewers had a tt/cart/arm combo that was approaching/over the five figure mark.
They are constructed of a thin aluminum disc coated with a thin black resin coating, The whole thing is
1.6mm thick
These are not cheap with some sites I saw selling them for upwards of $500. I found one on Ebay in Japan
for $265 with free FedEx shipping so I said what the heck, I hadn't spent money on my system in a while.
WOW is all that I can say...
It adds more "air" to the music a more lively sound, with tighter bass and somehow less surface noise from the vinyl itself.
I would say that the improvement is significant very happy with it (-;