{"product_id":"doshi-v3-0-phono-stage-silver-pre-owned","title":"Doshi V3.0 Phono Stage, Silver, Pre-Owned","description":"\u003cp\u003eEngineered to excel with both MC and MM phono cartridges, the Doshi Phono Preamplifier includes a Moving Coil Pre-Preamplifier whose J-Fet transistors provide 26 dB of gain, followed by a pair of monaural, 2:1 step-down transformers which lower gain to 20 dB. Although MC head amps often use step-up transformers (i.e., to increase gain) our novel use of step-down transformers accomplishes three critical benefits: Provides Galvanic Isolation, keeping Pre-Preamplifier grounds separate from the rest of the preamp Converts balanced cartridge input to single ended output, enabling our “Zero-Feedback” tube circuit Impedance is stepped-down 4:1, providing increased bandwidth and a low impedance output to drive the tube MM section.\u003c\/p\u003e\n\u003c!-- TABS --\u003e\n\u003ch5\u003eOVERVIEW\u003c\/h5\u003e\n\u003cp\u003eGood condition Pre-Owned Doshi V3.0 Phono Stage, Silver \u003cbr\u003e\u003cbr\u003ePower Cable, Remote, Will be packed in third party packaging for shipment \u003cbr\u003e\u003cbr\u003eRated 7\/10 for minor cosmetic wear consistent with age and use.\u003c\/p\u003e\n\u003ch5\u003eSPECIFICATIONS\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Hybrid tube \/ J-FET phono preamplifier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCartridge Compatibility:\u003c\/strong\u003e Moving Coil (MC) and Moving Magnet (MM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e 3 total — 1 MC input with adjustable loading, 1 MM input (10kΩ), 1 MM input (47kΩ)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e RCA and XLR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain:\u003c\/strong\u003e 72dB total gain (MC); 50–52dB MM gain depending on specification listing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMC Loading:\u003c\/strong\u003e Adjustable from 10Ω to 250Ω in 10Ω steps, and 250Ω to 6kΩ in 20Ω steps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMM Loading:\u003c\/strong\u003e Selectable 10kΩ and 47kΩ inputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Impedance:\u003c\/strong\u003e 250Ω; capable of driving loads of 10kΩ and higher\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMC Head Amp:\u003c\/strong\u003e J-FET differential input stage with transformer coupling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuit Design:\u003c\/strong\u003e Zero-feedback tube gain stage with passive RIAA equalization\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTubes:\u003c\/strong\u003e 2 × ECC83 \/ 12AX7, 2 × ECC81 \/ 12AT7, 2 × 7247 \/ 12DW7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControls:\u003c\/strong\u003e Microprocessor-controlled input selection, cartridge loading, and phase adjustment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote:\u003c\/strong\u003e Included remote handset for setup adjustments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e 14-gauge stainless-steel chassis with Corian isolation top plate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation:\u003c\/strong\u003e Three Stage Decoupling™ vibration-control system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e Separate oversized external power supply with shielded umbilical cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Construction:\u003c\/strong\u003e Point-to-point wired critical audio circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eADDITIONAL INFORMATION\u003c\/h5\u003e\n\u003cp\u003ePlease call 734.662.3595 and ask for Richard if you have any questions about this product.\u003cbr\u003e\u003cbr\u003eWe make every effort to update our ads quickly when inventory fluctuates, but we encourage you to call and check product availability, as we are also a brick and mortar store.\u003c\/p\u003e\n\u003c!-- \/TABS --\u003e","brand":"Doshi Audio","offers":[{"title":"Default Title","offer_id":43674222297151,"sku":null,"price":8995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0242\/3334\/5087\/files\/IMG_2026-08-01-161851.jpg?v=1785856733","url":"https:\/\/www.paragonsns.com\/products\/doshi-v3-0-phono-stage-silver-pre-owned","provider":"Paragon Sight \u0026 Sound","version":"1.0","type":"link"}