{"product_id":"stk4131v-sanyo-audiophile-stereo-amplifier-ic-20w-20w","title":"STK4131V Sanyo AF Amplifier Module","description":"\u003ch3\u003eAudiophile-Grade 20W Stereo Power Amplifier Module\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSTK4131V\u003c\/strong\u003e is a high-fidelity thick-film hybrid integrated circuit from Sanyo's legendary STK series. This \"V\" variant is a premium upgrade over the standard II series, specifically engineered for ultra-low total harmonic distortion (THD) and superior sound clarity.\u003c\/p\u003e\n\n\u003cp\u003eDelivering 20W + 20W of continuous power, this module is found in high-end vintage stereo systems where audio precision is paramount. Its internal current mirror circuit allows for an impressive 0.08% THD, providing a significantly cleaner output for critical listening.\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 20W + 20W (at 8Ω, THD = 0.08%)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Distortion:\u003c\/strong\u003e Audiophile-grade 0.08% THD for transparent audio reproduction.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 2-Channel Stereo (18-Pin SIP Package).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e Recommended ±23V (Absolute Maximum ±34.5V).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-in Features:\u003c\/strong\u003e Integrated muting circuit to suppress power-on\/off shock noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation \u0026amp; Thermal Management:\u003c\/h4\u003e\n\u003cp\u003eThe STK4131V features a built-in metal backplate for heat transfer. It \u003cstrong\u003emust\u003c\/strong\u003e be securely mounted to a proper heatsink using high-quality thermal grease. Ensure the power supply is stable and within the recommended ±23V range to maintain the ultra-low distortion characteristics of the \"V\" series.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eCompatibility Note: While pin-compatible with the STK4131II, the \"V\" version provides a noticeable improvement in sound quality and is the preferred choice for high-fidelity restorations.\u003c\/em\u003e\u003c\/p\u003e","brand":"Sanyo","offers":[{"title":"New","offer_id":48006074106010,"sku":"SC0007","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/9477\/8778\/files\/10-STK4131V_20Sanyo_20AF_20Amplifier_20Module.jpg?v=1778389396","url":"https:\/\/prellelectronics.com\/products\/stk4131v-sanyo-audiophile-stereo-amplifier-ic-20w-20w","provider":"Prell Electronics","version":"1.0","type":"link"}