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Speed Control

I've had a Classic 3 for about 1 1/2 years. When I first bought it, I used the KAB strobe to determine it was running spot on 33 1/3 RPM.

Recently I added an SDS. At 60hz it was running fast. With the SDS adjusted to 59.81hz, it runs at 33 1/3 RPM. Any ideas on the impact of -.19hz difference in speed?

At the correct speed it has a much wider soundstage. It sounds like it is playing in a room much larger than my actual room. I have a lot of acoustical room treatment (absorption and diffusion) so that my contribute to the difference.

My system is Benz LP (re-tipped) > Classic 3 > Sutherland Hubble > VK32SE > VK75SE > Eggleston Rosa. I use the record clamp and ring.
bigby
jmcgrogan2's avatar
jmcgrogan2
6,346 posts
 
Thanks for the clarification and the tip on Platter Speed Brf!
riffer
362 posts
 
The KAB is smaller than a 12" LP, so you can just run the test with the KAB on top of a playing LP.
needfreestuff's avatar
needfreestuff
572 posts
 
I could not believe my strobe was that far off until I used the Sutherland Timeline. In combination with my SDS to adjust the speed everything now sounds correct. Best of Luck
wntrmute2's avatar
wntrmute2
188 posts
 
You can also place it under a clear record album and play on top of it. Lucinda Williams' West and Blessed are both clear enough for this trick. I did not notice any difference in speed with needle in or out of groove.
roscoeiii's avatar
roscoeiii
1,155 posts
 
There is also a new speed controller by Phoenix called the Falcon that can also incorporate an optional RPM sensor called the Roadrunner. Sells for a good deal less than the SDS. $612 for both, and $378 for just the Falcon
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