{"product_id":"audio-research-ph9-silver-pre-owned","title":"Audio Research PH9, Silver, Pre-Owned","description":"\u003cp\u003ePH9 provides class leading phono preamplification for the majority of cartridge and turntable combinations. A trio of 6H30 vacuum tubes form the core of a simple and clear signal path. A classic Audio Research design, the PH9 revels in the vibrance and vitality with which tube gear excels, yet neutrally portrays the subtlest shadings in cartridge and tone-arm selections with transparency.\u003c\/p\u003e\n\u003c!-- TABS --\u003e\n\u003ch5\u003eOVERVIEW\u003c\/h5\u003e\n\u003cp\u003eVery Good condition Pre-Owned Audio Research PH9 phono in Silver\u003cbr\u003e\u003cbr\u003ePower cord, remote, manual, will be professionally packed for shipping \u003cbr\u003e\u003cbr\u003eRated 8\/10 for cosmetic wear consistent with age and use, Tubes have been replaced\u003c\/p\u003e\n\u003ch5\u003eSPECIFICATIONS\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e All-tube phono stage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain:\u003c\/strong\u003e 55 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency response:\u003c\/strong\u003e ±0.2 dB, 5 Hz–20 kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRIAA response:\u003c\/strong\u003e 1 dB points below 0.3 Hz and above 80 kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistortion:\u003c\/strong\u003e Less than 0.015% at 3 V RMS, 1 kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput loading:\u003c\/strong\u003e 47 kΩ, 1 kΩ, 500 Ω, 200 Ω, or 100 Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput impedance:\u003c\/strong\u003e 200 Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended load:\u003c\/strong\u003e 50 kΩ–100 kΩ\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput capacitance:\u003c\/strong\u003e 100 pF recommended\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTubes:\u003c\/strong\u003e Three 6H30 vacuum tubes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e RCA phono input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e RCA line-level output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoading adjustment:\u003c\/strong\u003e Front-panel controls and included remote\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e Shows cartridge loading, tube hours, and operating information\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":"Audio Research","offers":[{"title":"Default Title","offer_id":43762374901823,"sku":null,"price":6995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0242\/3334\/5087\/files\/img_2026-08-18-115913_960.png?v=1787084740","url":"https:\/\/www.paragonsns.com\/products\/audio-research-ph9-silver-pre-owned","provider":"Paragon Sight \u0026 Sound","version":"1.0","type":"link"}