Bob’ Devices: Sky 20 MC Step Up Transformer. I purchased this unit on USAudiomart from the original owner -- he purchased from Bob in January 2017. Excellent condition + Clearly superior to the built-in Lundahl 9206 SUT's in my preamp. Asking Price includes Shipping in U.S. and PayPal fees. The SKY 20 is switchable for 1:10 (20dB gain) or 1:20 (26dB gain). There's also a switch to either lift ground or to connect chassis ground. Easy to install. Sound with a ZYX Airy 3 -- dynamic and detailed. The reviewers have loved this product. Here are some links: Darryl Lindberg, Part-Time Audiophile, Sky 20 review, July 2015
https://parttimeaudiophile.com/2015/07/18/review-bobs-audio-devices-cinemag-sky-20-step-up-transformer/ Lewis Dardick, Stereo Times, Sky 20 review,
http://www.stereotimes.com/post/bob%E2%80%99s-devices-cinemag-sky-20-step-up-transformer Art Dudley, Sky 30 review, Stereophile, Listening #137, May 2014
http://www.stereophile.com/content/listening-137 Bob provides an excellent description at his website.
http://www.bobsdevices.com/Moving-Coil-Step-Up-Transformers/ Thank you and happy listening,
Harvey
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