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VPI SDS owners-

I check the speed with the appropriate strobe every 4-6 weeks, or when I make a cartridge change. It was initially set at 60.12 when I got it (about a year ago). I would say I had to lower the speed 5 or 6 times since I got it. It now runs at 59.53 HZ to be spot on. Anyone know why this is happening? Should I be concerned? Turntable is the original VPI Aries1.
markpao
frankm1
58 posts
 
I had the same challenge trying to keep things in sync with my SDS. Although not a complete fix all, things are much, much more stable since I've had the SDS plugged into a PS Audio PPP.
tsciame
88 posts
 
Sounds like an isolation issue, that is over time your table is moving around a tad. Slight movements when you change the cart... just a thought. Btw I have the same table and my SDS is always spot on. I also use a 1000g clamp. Both the table and the SDS have their own stand. I can wrap the table hard with my hand while playing an album and you don't hear it...

Go figure.
myles_b_astor's avatar
myles_b_astor
134 posts
 
One can also change the line voltage from the SDS to the motor and that often solves the speed instability issues. You can download the manual from the vpi website and there are instructions there on how to adjust the SDS.
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