{"product_id":"unison-research-phono-one-tube-preamplifier","title":"Unison Research Phono One Tube Preamplifier","description":"\u003cp\u003eThe Unison Research Phono One has always been a beloved choice among audiophiles, earning a reputation for its timeless design and superior sound quality. Recognizing the continuous demand for this classic, Unison Research has reintroduced the Phono One, blending the cherished aesthetics of the original with modern technological enhancements that push the boundaries of audio fidelity.\u003c\/p\u003e\n\u003ch5\u003eKey Features\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTen Triode Design: \u003c\/strong\u003eUtilizes 5 ECC83\/12AX7 double triodes in parallel for reduced noise and distortion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e54dB Gain: \u003c\/strong\u003eCompatible with all MM and most MC cartridges, providing ample amplification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise RIAA Equalization:\u003c\/strong\u003e Features a passive network with carefully selected components for accurate sound reproduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Input Impedance: \u003c\/strong\u003eAllows matching of resistance and capacitance to your cartridge for optimal performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Power Supply Design:\u003c\/strong\u003e Independent RC filter cells minimize cross-talk and enhance channel separation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandcrafted Quality:\u003c\/strong\u003e Includes hand-soldered wiring, oversized power components, and enhanced cooling for long-term reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eAbout Unison Research\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUnison Research, founded in Italy, has a long-standing reputation for crafting high-fidelity audio equipment that marries traditional craftsmanship with cutting-edge technology. Each product reflects their passion for music and dedication to producing equipment that delivers both sonic excellence and visual beauty. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch5\u003eTimeless Design Meets Modern Engineering\u003c\/h5\u003e\n\u003cp\u003eWhile the exterior of the Phono One remains faithful to its original, elegant form, the internal circuitry has been significantly upgraded. The inclusion of ten triodes (5 ECC83\/12AX7 double triodes) configured in parallel achieves exceptional noise reduction and distortion control. This enhancement also boosts the overall gain to approximately 54dB, making it versatile for use with a wide range of cartridges.\u003c\/p\u003e\n\u003cp\u003eThe Phono One employs a meticulously selected passive RIAA network, ensuring precise adherence to the equalization curve. Upgraded output capacitors further improve bandwidth and minimize phase rotation at low frequencies, delivering a sound that's both expansive and intricately detailed.\u003c\/p\u003e\n\u003ch5\u003ePrecision and Flexibility\u003c\/h5\u003e\n\u003cp\u003eUnderstanding the critical nature of cartridge matching, the Phono One offers selectable input resistance and capacitance, allowing for a tailored fit to any cartridge’s requirements. A dedicated spot on the PCB is reserved for custom resistor values, ensuring that even the most discerning audiophiles can fine-tune their setup for optimal performance.\u003c\/p\u003e\n\u003cp\u003eThe power supply design is another area where the Phono One excels. With independent RC filter cells for each gain stage, it dramatically reduces cross-talk, achieving nearly immeasurable low-frequency interference at less than -90dB. This meticulous attention to detail extends to the layout design, which enhances channel separation and interference rejection, culminating in an audio experience of exceptional natural detail and musical clarity.\u003c\/p\u003e\n\u003ch5\u003eCraftsmanship Without Compromise\u003c\/h5\u003e\n\u003cp\u003eEvery aspect of the Phono One reflects Unison Research’s commitment to quality. From the hand-soldered signal wiring to the placement of tubes designed to minimize microphonic distortions, no detail has been overlooked. Oversized power components and proper cooling measures ensure long-term reliability, making the Phono One not just a piece of equipment, but a lasting investment in high-fidelity audio.\u003c\/p\u003e\n\u003ch5\u003e\n\u003cmeta charset=\"utf-8\"\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp\u003eYour listening space is unique, and so are your needs. That's why we take the time to understand your preferences, your room acoustics, and your sonic dreams. We'll guide you through our range of hi-fi options, ensuring you find the perfect match for your space and budget. We believe in personal connections, exceptional service, and expert advice because when it comes to sound, there's no one-size-fits-all solution. Contact us to learn more.\u003c\/p\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStereo Phono Valve Preamplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePure A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRIAA\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePassive +\/- 0.1 dB (20 Hz - 20 kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e800 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 x Line\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e54 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Harmonic Distortion (THD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1% at 1V output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSignal to Noise Ratio (S\/N)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e–80 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 per MM or MC phono cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e47 kOhm, 100, 50, 22 ohms \/ 100, 200, 320, 420 pF (modifiable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeedback Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eValves\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 x ECC83 \/ 12AX7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExternal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e37.3 x 5.84 x 24.63 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 3.6 kg (including power supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Unison Research","offers":[{"title":"Default Title","offer_id":67848944157041,"sku":"URPHONOONE","price":2317.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/5215\/1921\/files\/Unisonresearchphonoonepreamp.jpg?v=1792519763","url":"https:\/\/sliyden.store\/products\/unison-research-phono-one-tube-preamplifier","provider":"sliyden.store","version":"1.0","type":"link"}