{"product_id":"fosi-audio-box-x1","title":"Fosi Audio BOX X1 MM Phono Preamp — RCA + 3.5mm Headphone Out, 12V Adapter","description":"\u003cp class=\"tp-summary\"\u003eThe Fosi Audio BOX X1 is a compact MM phono preamp that converts a turntable's phono signal to line level, with RCA and 3.5mm headphone outputs that work at the same time and a 12V\/1.5A adapter in the box. It suits turntable owners whose amp or powered speakers lack a phono input, and anyone who wants to hear records on headphones.\u003c\/p\u003e\n\u003ch2\u003eWho the Fosi Audio BOX X1 is for\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTurntables without a phono stage:\u003c\/strong\u003e It works with MM (moving magnet) cartridges and applies standard RIAA equalization, rated at 70dB SNR and ≤0.08% THD.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePowered speakers:\u003c\/strong\u003e The RCA line output connects straight to active speakers, or to a power amplifier that then drives passive speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone listening:\u003c\/strong\u003e The 3.5mm headphone jack runs alongside the RCA output, so headphones and speakers can stay connected at the same time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounded turntables:\u003c\/strong\u003e A grounding post on the back accepts your turntable's ground wire.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkip it if:\u003c\/strong\u003e You use a moving coil (MC) cartridge or want to drive passive speakers directly; it is built for MM cartridges and is not a power amplifier.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFosi Audio BOX X1 key specs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCartridge type:\u003c\/strong\u003e MM (moving magnet)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e MM turntable RCA, grounding post, 12V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e RCA line out and 3.5mm headphone out, usable at the same time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput level:\u003c\/strong\u003e 2V max (P-P) at 10kΩ\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSNR:\u003c\/strong\u003e 70dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTHD:\u003c\/strong\u003e ≤0.08% @ 1kHz, 3mV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEqualization:\u003c\/strong\u003e Standard RIAA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 12V\/1.5A adapter (AC 100–240V input), included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize and weight:\u003c\/strong\u003e 3.94 × 2.17 × 0.98 in (100 × 55 × 25 mm), 0.35 lb (161g)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn the box:\u003c\/strong\u003e BOX X1 phono preamp, 12V\/1.5A power adapter, user manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"tp-trust\"\u003eGenuine Fosi Audio stock. Free shipping on every order, 45-day returns.\u003c\/p\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":46279075463303,"sku":"Fosi Audio BOX X1","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0756\/5833\/0247\/files\/15458381445.jpg?v=1792672757","url":"https:\/\/tonepier.com\/products\/fosi-audio-box-x1","provider":"TonePier","version":"1.0","type":"link"}