{"product_id":"used-open-box-smsl-pa400-speaker-amplifier","title":"SMSL PA400 Used \/ Open-Box Speaker Amplifier","description":"\u003ch2\u003eProduct overview\u003c\/h2\u003e\u003cp\u003eThe SMSL PA400 is a high-power GaN speaker amplifier for two-channel desktop or hi-fi systems that need compact amplification with flexible stereo or mono use. This HiFiLoop used \/ open-box private quote reference page helps buyers request unit details before confirmation.\u003c\/p\u003e\u003ch2\u003eKey features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGaN speaker amplifier platform for high-power two-channel systems.\u003c\/li\u003e\n\u003cli\u003eInfineon GaN FET power stage with switching frequency up to 1 MHz.\u003c\/li\u003e\n\u003cli\u003eTI PGA2311 volume control chip for stepped control and low distortion operation.\u003c\/li\u003e\n\u003cli\u003eStereo pass-through mode for use with a separate preamp.\u003c\/li\u003e\n\u003cli\u003eXLR mono mode allows two PA400 units to be used as a higher-power stereo pair.\u003c\/li\u003e\n\u003cli\u003eGold-plated input and output sockets with overheating and overcurrent protection circuits.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eKey specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eGaN speaker amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower stage\u003c\/th\u003e\n\u003ctd\u003eInfineon GaN FET\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSwitching frequency\u003c\/th\u003e\n\u003ctd\u003eUp to 1 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVolume control\u003c\/th\u003e\n\u003ctd\u003eTI PGA2311\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperation modes\u003c\/th\u003e\n\u003ctd\u003eStereo pass-through; XLR mono mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProtection\u003c\/th\u003e\n\u003ctd\u003eOverheating and overcurrent protection circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eSeries \/ category notes\u003c\/h2\u003e\u003cp\u003ePA400 sits in SMSL's amplifier category and is positioned as a compact high-power speaker amplification component for systems using a separate front-end component or preamp.\u003c\/p\u003e\u003ch2\u003eCondition \u0026amp; availability\u003c\/h2\u003e\u003cp\u003eThis is a used \/ open-box reference listing.\u003c\/p\u003e\u003cp\u003eFinal pricing, condition, accessories, and availability are confirmed case by case.\u003c\/p\u003e\u003ch2\u003eShipping \u0026amp; support\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e3-5 business days processing after confirmation\u003c\/li\u003e\n\u003cli\u003e7-15 days typical international shipping\u003c\/li\u003e\n\u003cli\u003eFree shipping over $199\u003c\/li\u003e\n\u003cli\u003e14-day DOA support\u003c\/li\u003e\n\u003cli\u003eRepair path from day 15 to day 180\u003c\/li\u003e\n\u003cli\u003eBuyer may be responsible for return shipping, taxes, and duties\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eWhat does this Reference Listing mean?\u003c\/h3\u003e\u003cp\u003eIt is a private quote page for checking a used or open-box unit before confirmation.\u003c\/p\u003e\u003ch3\u003eIs this exact unit ready to ship?\u003c\/h3\u003e\u003cp\u003eAvailability, condition, and included accessories are confirmed manually before quote.\u003c\/p\u003e\u003ch3\u003eCan HiFiLoop help me find another unit?\u003c\/h3\u003e\u003cp\u003eYes. HiFiLoop can help look for another unit or a similar SMSL component if this listing is not a match.\u003c\/p\u003e","brand":"SMSL","offers":[{"title":"Default Title","offer_id":48338797265110,"sku":null,"price":369.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/7445\/9862\/files\/1_1__4_4eab05f8-ddaa-4171-a6f9-365d75b66079.jpg?v=1780972516","url":"https:\/\/www.hifiloop.com\/ko\/products\/used-open-box-smsl-pa400-speaker-amplifier","provider":"HiFiLoop","version":"1.0","type":"link"}