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  • VPI SDS Speed Control

    Looks like VPI is about to release a turntable new speed control device, the ADS. See the Harry Weisfeld forum: http://vpiindustries.com/forum/viewt...hp?f=12&t=7530

  • #2
    Originally posted by Analog21 View Post
    Looks like VPI is about to release a turntable new speed control device, the ADS. See the Harry Weisfeld forum: http://vpiindustries.com/forum/viewt...hp?f=12&t=7530

    Yes that's been the rumor. I suspect Mike Bettinger has had a bit of input into the new design too.

    It would be interesting to see the same measurement done on the separate motor tables or the direct drive.
    Myles B. Astor, PhD, Administrator
    Senior Editor, Positive-Feedback.com
    ________________________________________

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    • #3
      I don't believe the direct drive is synchronous to the power input so the ADS frequency shouldn't affect it, and it probably already has a built in PLC to filter out power line variations.
      Magnepan 1.6 QR Loudspeakers, Amherst A-2000 MOSFET 150 WPC Amp, Conrad Johnson PV-10A Modded Tube Line & Phono Stage, Electrocompaniet MC II Class A Head Amp, Audio Technica AT-OC9XML Cart (Stereo) , Graham Engineering 2.2 Tonearm (Stereo) , VPI Aries-1 Turntable (Stereo) , VPI Clamp, Denon DL-102 Cart, (Mono) , Luxman Tonearm (Mono) , Kenwood KD-500 Turntable (Mpmp) , Michell Clamp, Marantz 20B Analog FM Tuner, Pioneer SACD, Onkyo DX-6800 CD Transport, DIY 24B/192K DAC, Sennheiser HD-650 Headphones, Headroom Max Balanced Headphone Amp, DIY Silver Interconnects

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      • #4
        Originally posted by JCOConnell View Post
        I don't believe the direct drive is synchronous to the power input so the ADS frequency shouldn't affect it, and it probably already has a built in PLC to filter out power line variations.

        The "original" SDS converts the sine wave coming out of the wall to a hybrid square wave to drive the table's motor. In addition, you can also get a small improvement by lowering the preset operating voltage, presumably again by lowering the noise floor.

        What the new version of the SDS will do remains to be seen.
        Myles B. Astor, PhD, Administrator
        Senior Editor, Positive-Feedback.com
        ________________________________________

        -Zellaton Plural Evo speakers
        -Goldmund Telos 280 stereo amp
        -Goldmund Mimesis 37S Nextgen preamplifier
        -Doshi EVO and Goldmund PH3.8 phonostage
        -VPI Vanquish direct-drive turntable
        -VPI 12-inch 3D Fat Boy dual pivot tonearm, VPI 12-inch 3D Fat Boy gimballed and SAT LM-12 arm
        -Lyra Atlas SL Lambda, Fuuga Mk. 2, vdh Colibri Master Signature, MutechHayabusa, MOFI Master Tracker, Sumiko Songbird cartridges
        -Technics RS1506 with Flux Magnetic heads, Doshi V3.0 tape stage (balanced)
        -Assorted cables including Transparent XL Gen. 5, Skogrand, Viero, Kubala-Sosna, Audience Au24SX, Genesis Advanced Technologies and Ensemble Power Cords
        -Accessories including Stillpoint Aperture panels, Cathedral Sound panels, Furutech NCF Nano AC receptacles; Silver Circle Tchaik 6 PLC, Symposium ISIS and SRA Craz racks, Audiodharma Cable Cooker, Symposium Ultra and assorted SRA platforms.

        Comment

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