SDS Speed

SDS Speed

Postby ihmeyers » Tue Apr 16, 2019 4:57 pm

I bought a Super Scoutmaster Reference last week with an SDS. I bought the KAB strobe setup disc to make sure the speed was dead on. The disk came today and in order to get the 33 1/3 RPM speed just right I had to set the SDS to a frequency of 60.75. I don't have my phono stage hooked up right now so I haven't listened to it, but does this setting seem way too high? I live in S. FLA and line fluctuations here suck. I have a PS Audio line conditioner and voltage readout during the day can vary from 118-123.

Thanks much.

Ian
Florida, USA
Last edited by ihmeyers on Tue Apr 16, 2019 9:45 pm, edited 1 time in total.
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Re: SDS Speed

Postby Brf » Tue Apr 16, 2019 6:30 pm

60.75 hz is well within the acceptable range. Great table btw.
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Re: SDS Speed

Postby ihmeyers » Wed Apr 17, 2019 9:07 am

Last night the SDS needed to be turned down from 60.75 to 60.34 for speed to be dead on. Florida power grid sucks. I'd hate to have to check speed with strobe every time I play a record. :(
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Re: SDS Speed

Postby Brf » Wed Apr 17, 2019 11:20 am

ihmeyers wrote:Last night the SDS needed to be turned down from 60.75 to 60.34 for speed to be dead on. Florida power grid sucks. I'd hate to have to check speed with strobe every time I play a record. :(


Unfortunately, that's not a Florida power issue. The SDS regenerates the frequency to a defined value. Make sure that you let the table bearing warm up and also to allow the SDS to stabilize before taking a measurement or speed adjustment.
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Re: SDS Speed

Postby tony22 » Wed Apr 17, 2019 12:27 pm

Brent, how long does that usually take?
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Re: SDS Speed

Postby Brf » Wed Apr 17, 2019 2:36 pm

tony22 wrote:Brent, how long does that usually take?


I usually wait for about a 1/2hr.
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Re: SDS Speed

Postby ihmeyers » Fri Apr 19, 2019 9:20 am

Brf wrote:
tony22 wrote:Brent, how long does that usually take?


I usually wait for about a 1/2hr.


When you say warm-up do you mean with the platter spinning? As far as the SDS warming up, I leave that on all the time. Should I not be doing that?

Thanks :D
1: Maker Ref 2A, NAT Magnetic Preamp, PS Audio DMP & DSD, Hansen "Prince" Speakers, SR Atmosphere XL-4 & Powercell 10

2: VPI Super Scoutmaster Ref w/JMW-12 3DR, Benz Gold, VTL ST-85 Amp, Parasound JC3+, Zesto Andros SUT, AZ Adaggio Jrs.
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Re: SDS Speed

Postby tom collins » Fri Apr 19, 2019 3:05 pm

The platter spins and warms up the grease. One side of an average record will do in spring. In winter, maybe a little longer if the room is cool. During this time, your electronics are also warming up and should really sound good too after that first side. make your adjustments then.
TNT6HR, rim drive, superplat, outer ring, center weight, 12.0 arm, 12.7 arm, SDS, SRA platform; Soundsmith Gold Denon, Zu, Grado ME+ carts; Cary Audio PH302 ver 2 phono-pre; Cary 30i prototype EL34 integrated amp; Devore Gibbon 8 speakers; PSB sub.
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