{"product_id":"used-open-box-matrix-audio-si-1-network-isolator","title":"Matrix Audio SI-1 Used \/ Open-Box Network Isolator","description":"\u003ch2\u003eProduct overview\u003c\/h2\u003e\n\u003cp\u003eThe Matrix Audio SI-1 is an audio-grade network isolator for streaming audio systems, designed to reduce network-related interference between routers, switches, streamers, music players, and DACs. This used \/ open-box private quote page helps HiFiLoop confirm the right unit and configuration before quotation.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAudio-grade network isolator for cleaner Ethernet signal paths in streaming audio systems.\u003c\/li\u003e\n\u003cli\u003eActive optical-electrical isolation design for blocking electromagnetic interference and ground-loop related noise.\u003c\/li\u003e\n\u003cli\u003eDual-channel optical transmission architecture with independent sending and receiving paths.\u003c\/li\u003e\n\u003cli\u003eTwo femtosecond clocks with linear power supply based on a dual-winding toroidal transformer and multiple LDOs.\u003c\/li\u003e\n\u003cli\u003eDual RJ45 ports with one input and one photoelectric-isolated output.\u003c\/li\u003e\n\u003cli\u003eCNC unibody aluminum enclosure with switchable rear Ethernet port LEDs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eMatrix Audio SI-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct category\u003c\/th\u003e\n\u003ctd\u003eAudio grade network isolator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNetwork ports\u003c\/th\u003e\n\u003ctd\u003e1 × RJ45 input and 1 × RJ45 photoelectric-isolated output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNetwork speed\u003c\/th\u003e\n\u003ctd\u003e1 Gbps \/ 100 Mbps \/ 10 Mbps RJ45\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMAC address table\u003c\/th\u003e\n\u003ctd\u003e2K entries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower consumption\u003c\/th\u003e\n\u003ctd\u003e\u0026lt; 15 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e120 × 205 × 44 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e1.54 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eSeries \/ category notes\u003c\/h2\u003e\n\u003cp\u003eSI-1 is handled as a network-isolation accessory for streaming audio systems and routed as an upgrade accessory for HiFiLoop quote handling.\u003c\/p\u003e\n\u003ch2\u003eCondition \u0026amp; availability\u003c\/h2\u003e\n\u003cp\u003eThis is a used \/ open-box reference listing.\u003c\/p\u003e\n\u003cp\u003eFinal pricing, condition, accessories, and availability are confirmed case by case.\u003c\/p\u003e\n\u003ch2\u003eShipping \u0026amp; support\u003c\/h2\u003e\n\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\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eWhat does this Reference Listing mean?\u003c\/h3\u003e\n\u003cp\u003eIt is a private quote page for a used or open-box unit. HiFiLoop confirms the final unit details before quotation.\u003c\/p\u003e\n\u003ch3\u003eIs this exact unit ready to ship?\u003c\/h3\u003e\n\u003cp\u003eNot automatically. Each unit is checked case by case before a quote is confirmed.\u003c\/p\u003e\n\u003ch3\u003eCan HiFiLoop help me find another unit?\u003c\/h3\u003e\n\u003cp\u003eYes. Send your target model, destination country, condition preference, and any version or accessory requirements.\u003c\/p\u003e","brand":"Matrix Audio","offers":[{"title":"Default Title","offer_id":48350883348694,"sku":null,"price":519.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/7445\/9862\/files\/1_1__1_35f7199a-d169-40d7-b820-960b5af3fe21.png?v=1781169256","url":"https:\/\/www.hifiloop.com\/th\/products\/used-open-box-matrix-audio-si-1-network-isolator","provider":"HiFiLoop","version":"1.0","type":"link"}