{"product_id":"onkyo-m-501-stereo-power-amplifier-150wpc","title":"Onkyo M-501 Stereo Power Amplifier 150WPC","description":"\u003cp\u003ePower your vintage stereo system with the \u003cstrong\u003eOnkyo M-501\u003c\/strong\u003e, a high-current stereo power amplifier delivering 150 watts per channel into 8 ohms. Its discrete output stage, wide frequency response, dual speaker outputs, and rugged component chassis make it an excellent match for the\u003cstrong\u003e Onkyo P-301\u003c\/strong\u003e or other quality preamplifiers. With plenty of clean power for demanding speakers, the \u003cstrong\u003eM-501\u003c\/strong\u003e is a strong centerpiece for a dedicated two-channel system. Fully tested, refurbished, and \u003cstrong\u003eSPENCERTIFIED\u003c\/strong\u003e for reliable everyday audio use.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cb\u003eCONDITION\u003c\/b\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eSPENCERTIFIED\u003c\/b\u003e\u003cspan style=\"font-weight: 400;\"\u003e- Fully certified by Spencer\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eRefurbished and \u003c\/span\u003e\u003cb\u003eSPENCERTIFIED\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e100% tested and functional. Controls and switches cleaned with WD-40 Specialist Electrical Contact Cleaner. Internal boards and connections inspected, amplifier outputs tested, DC offset checked, protection circuitry verified, and both left and right audio channels tested under load.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCosmetic Condition: 9\/10\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eFunctional Condition: 10\/10\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e📦 Professionally packed and shipped with care.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cb\u003e\u003ci\u003eWHAT'S IN THE BOX?\u003c\/i\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: 400;\"\u003eOnkyo M-501 Stereo Power Amplifier 150WPC\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003eFactory Remote (RC-199M)\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003eBatteries \u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003ePower Cord \u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003eSpeaker Cables \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cb\u003e\u003ci\u003eKEY FEATURES\u003c\/i\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower output: 150 watts per channel into 8Ω (stereo)\u003c\/li\u003e\n\u003cli\u003eFrequency response: 5Hz to 100kHz\u003c\/li\u003e\n\u003cli\u003eTotal harmonic distortion: 0.09%\u003c\/li\u003e\n\u003cli\u003eDamping factor: 60\u003c\/li\u003e\n\u003cli\u003eInput sensitivity: 1V\u003c\/li\u003e\n\u003cli\u003eSignal-to-noise ratio: 100dB\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cb\u003eINPUT-\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRI x1 (back)\u003c\/li\u003e\n\u003cli\u003eAnalog Audio x1 L\/R (back)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cb\u003eOUTPUT-\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHeadphone x1 (front)\u003c\/li\u003e\n\u003cli\u003eSpeakers x2 L\/R (back)\u003c\/li\u003e\n\u003cli\u003eRI x1 (back)\u003c\/li\u003e\n\u003cli\u003eAC x1 (back)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cb\u003e\u003ci\u003eDIMENSIONS\u003c\/i\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e\u003cstrong\u003eSize:\u003c\/strong\u003e 17.13\" x 13.9\" x 5\" (W x H x D)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 23 lbs\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cb\u003e\u003ci\u003eMANUFACTURE PLACE\u003c\/i\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMade in Japan\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SpenCertified","offers":[{"title":"Default Title","offer_id":49416223752436,"sku":null,"price":999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1683\/2705\/files\/Onkyo-M-501-Stereo-Power-Amplifier-150WPC-Power-Amplifiers.jpg?v=1789592091","url":"https:\/\/spencertified.com\/products\/onkyo-m-501-stereo-power-amplifier-150wpc","provider":"SpenCertified","version":"1.0","type":"link"}