Line conditioner for turntable,

I believe that both Walker and VPI make them available. Also, Origin Live has a DC motor kit that can be used in many different turntables. My TT is battery powered with a DC motor, and I found it gives a very good sound.

If you have an AC synchronous motor driving your table, I highly recommend the VPI SDS (Synchronous Drive System). Go on VPI's website for a detailed description of what this unit does (it does more than just condition your power). I have one and am keeping it around until something better comes around. VPI also has a PLC conditioner - less costly - for turntables (again, I believe only for AC synchronous motors).

Good luck

PS Audio power plants are, at least at face value, capable of speed control.

Ohala is correct in that the PS Audios can be used to provide 33 (60Hz) and 45 rpm (81 Hz, available with the upgraded power plants), but will not provide "speed control" in the sense of fine-tuning the speeds. The PS Audio sounded better than the original VPI PLC in my system, but the SDS sounds better yet.