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  • Color Me Intrigued

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    Anyone have a chance to play with the Bob's Devices Step Up transforner for VPI turntables?

    https://www.bobsdevices.com/Integrat...ansformer.html

    Bob's Devices SUT intrigues me because it would eliminate that pesky phono cable and all the losses to that small signal that ensue. In real life, this little SUT replaces the junction box on the back of the VPI table and the tonearm plugs directly into the SUT. So the connection between the table and phono section now become more line level like. So the question is how do the sonic gains from eliminating the phono cable, a set of connections, not to mention the chance of RFI and noise balance out against the sound of the SUT?

    I actually had one in house end of 2014 but Bob sent me the wrong transformer. Got involved in another project so never got around to following up and getting the right SUT for my VPI table.
    Myles B. Astor, PhD, Administrator
    Senior Editor, Positive-Feedback.com
    ________________________________________

    -Magico S5 Mk.2 speakers with SPod feet
    -Goldmund Telos 280 stereo amp
    -Goldmund Mimesis 37S Nextgen preamplifier
    -Doshi V3.0 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, 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.

  • #2
    I think it's all going to depend on the quality of the transformers and how well they match your cartridge. It should drop your noise floor (which I am sure is quite low with the Doshi) to an even lower level. Nothing ventured, nothing gained as they say.
    Micro Seiki SX-8000 table with flywheel, SME 3012R arm, SME 312S arm, Lyra Etna SL and Dynavector XV-1S cartridges, ARC Ref 3 phono stage, Otari MX-55 tape deck, Ampex 350 repros, Roon Nucleus Plus server, PS Audio DSJ DAC, ARC Ref 6 pre, ARC Ref 75 amp, JBL 4345 speakers, and Def Tech Ref subs.

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    • #3
      I have one of Bob's standard SUTs, the type that does require cables. I like it. Folks should give Bob's SUTs a try,

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      • #4
        Maybe off topic but what benefit do SUT give instead of a pure gain amplification stage?
        Marty

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