{"product_id":"stk4231v-sanyo-audiophile-stereo-amplifier-100w-100w","title":"STK4231V Sanyo AF Power Amplifier","description":"\u003ch3\u003eFlagship 100W+100W High-Fidelity Stereo Amplifier Module\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSTK4231V\u003c\/strong\u003e is the high-power flagship of Sanyo’s prestigious \"V\" series thick-film hybrid ICs. Delivering a continuous \u003cstrong\u003e100 Watts per channel\u003c\/strong\u003e, this module is engineered for elite home audio systems that demand both high volume and clinical signal purity. The \"V\" series architecture utilizes an internal current mirror to achieve a remarkably low Total Harmonic Distortion (THD) of just \u003cstrong\u003e0.08%\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThis 22-pin module is a common replacement for flagship vintage receivers from the 1990s and high-performance integrated amplifiers. Its dual-channel design provides exceptional channel separation and a noise floor that is virtually silent, making it a favorite for audiophile-grade restorations.\u003c\/p\u003e\n\n\u003ch4\u003eKey Technical Features:\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContinuous Power Output:\u003c\/strong\u003e 100W + 100W (at 8Ω, 20Hz to 20kHz, THD = 0.08%).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDistortion Performance:\u003c\/strong\u003e Ultra-low 0.08% THD for transparent, professional-grade audio.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-in Muting:\u003c\/strong\u003e Integrated muting circuit to eliminate all types of power-on\/off shock noise (\"pop\").\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e Optimized for high-bandwidth audio from 20Hz to 50kHz.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e Recommended supply of ±51V (Absolute Maximum ±75V).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePin Compatibility:\u003c\/strong\u003e Pin-compatible with the STK4201II series (0.4% THD) and the STK4141X series.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation \u0026amp; Thermal Management:\u003c\/h4\u003e\n\u003cp\u003eAs a 200W total output module, the STK4231V generates massive thermal energy. It \u003cstrong\u003emust\u003c\/strong\u003e be securely mounted to a very large, high-mass heatsink using premium thermal silicone grease. Operating this module without a heatsink—even for a one-second functional test—will cause immediate and permanent internal substrate failure.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eTechnician's Note: Before installation, verify that your power supply rails are healthy and ideally near ±51V. Due to the high voltages involved, ensure all filter capacitors are fully discharged before soldering. We highly recommend verifying the health of the output protection relay and emitter resistors to prevent damaging the new IC.\u003c\/em\u003e\u003c\/p\u003e","brand":"Sanyo","offers":[{"title":"New","offer_id":48013256261786,"sku":"SC0008","price":39.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/9477\/8778\/files\/12-STK4231V_20Sanyo_20AF_20Power_20Amplifier.jpg?v=1778557038","url":"https:\/\/prellelectronics.com\/products\/stk4231v-sanyo-audiophile-stereo-amplifier-100w-100w","provider":"Prell Electronics","version":"1.0","type":"link"}