VPI Classic upgrade what any had the SDS, it is a

I would like to hear some impressions as well regarding SDS in VPI Classic. At least in reviews, HP did not seem to think that SDS added much whereas Hifi Plus thought it gave a nice improvement over stock Classic. Unfortunately I have 220V version so SDS will not work until I change to motor to 110V first (I was told that SDS will work with 220V wall electricity but motor has to be 110V version) so I cannot just simply borrow SDS from my local dealer to try out.

For what its worth, my Dyna XV-1s also has no problme hitting the clamp. There is usually a 3-4 mm gap between cartridge and the clamp.

I think now that SDS may or may not help your system will depend very much on your electricity. Recently I tried using my computer UPS with true-online whatever it is that keeps the voltage very stable at 230v. In my apartment, electricity tends to fluctuate between 220-226v from what I can see on my UPS. Anyhow, it made significant improvement in my system. The bass is deeper, tighter with much better pace and midrange is more fleshed out. How could one attribute all these sonic improvement by steadier voltage regulation on a motor spinnng a record, I have no idea and I don't know how much better SDS would be over true-online UPS power conditioner but I think if you have a UPS lying around and wonder if your VPI may or may not benefit from SDS, you could use this to see if it makes a difference first.