Help VPI SDS Issue

Same thing when we added the SDS to my friends Clearaudio Champion. Just give the platter a little shove. BTW- we needed to up the Hz on 33.33 and lower on 45 RPM from factory setting. Once we dialed it in using the strobe the sound was absolutely astonishing. Pace, rhythm and timing are not just audiophile and reviewer buzz words. The sound took on a CD-like quality, and I mean that in the best sense. Tight bass, quieter background and just an overall rightness to the music.

Johnbrown,
Yes, you are correct. I hadn't dealt with those settings in so long that I forgot what could be customized.
Please ignore my prior post.

That does lead me to ask a question. Do SDS users leave the motor turned on, so that the table starts spinning when the SDS is turned on? Wouldn't you have to do it this way to take advantage of the ramped up voltage at turn-on? Or does the SDS ramp up the voltage when it senses that the motor has been turned on?
Cheers.

I keep my motor on all the time (upgraded motor w.flywheel, TNT Jr., superplatter) and the sds power's up my table. No issues (and sounds great). Motor took too long to get to proper speed leaving the sds on and using the power switch on the motor - so Tfaudio, you may be correct.

Interesting question Tfkaudio-

I've always just left the motor switch 'on', and turned the tt on with the sds.

However, *for the sake of experimentaion*, I tried it as you described-motor switch off, turn on SDS-and the SDS almost *immediately* jumps from 115v to the 'run' voltage. Whereas, with the motor switch on, turn on the SDS, it takes about 5 seconds for the voltage to drop.

The sds was apparently designed to have the motor switch on at all times.

*Now we know!* (-:

Hmm, This sort of sounds odd, that VPI's own Table isn't compatible with thier own SDS, then one has to rip into the Turntable, to swap a Cap? Shouldn;t be I say, but if that's what it needs, then that would be the route I would go.

My HW-19 uses a 600rpm Motor, and never had an issue with the SDS, as far as start up.

Yes, the SDS drops to a lower running voltage, but upon start up, the SDS supposed to provide a full 115VAC for a few seconds, then ramp down the voltage to what one selects, or if that has yet to be done, the default voltage that was set by the factory.

This is to give the motor time to come to speed.
If 72V is too low, then yes, try the next higher up, or even two higher up. If you still have issues, definitely contact VPI, I'm sure they'll have some answers. Mark