{"product_id":"fosi-box-x5","title":"Fosi Audio Box X5","description":"\u003cp\u003eFosi Audio Box X5 is a compact phono preamplifier for moving-magnet and moving-coil turntable cartridges.\u003c\/p\u003e\u003cp\u003eFour selectable gain settings, precise RIAA equalization and low-noise components make it a flexible upgrade between a turntable and a line-level amplifier or powered speakers.\u003c\/p\u003e\n\u003ch2\u003eWhy it stands out\u003c\/h2\u003e\n\u003ch3\u003eMM and MC cartridge support\u003c\/h3\u003e\u003cp\u003eA front-panel cartridge selector and 38 \/ 48 \/ 56 \/ 66 dB gain settings accommodate a broad range of phono cartridges.\u003c\/p\u003e\n\u003ch3\u003ePrecision analog signal path\u003c\/h3\u003e\u003cp\u003eOPA1612 amplification, precision film components and gold-plated RCA connections are designed for accurate, low-noise vinyl playback.\u003c\/p\u003e\n\u003ch3\u003eSimple system integration\u003c\/h3\u003e\u003cp\u003eDedicated RCA input, RCA output and grounding terminal provide a straightforward connection between a turntable and a line-level audio system.\u003c\/p\u003e\n\u003ch3\u003eLow-noise, user-friendly analog design\u003c\/h3\u003e\u003cp\u003eAn aluminum chassis, one-touch controls and dedicated grounding support make setup straightforward while helping preserve a clean phono signal.\u003c\/p\u003e\u003ch2\u003eBest for\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eTurntables with MM or MC cartridges\u003c\/li\u003e\n\u003cli\u003eVinyl systems without a built-in phono stage\u003c\/li\u003e\n\u003cli\u003eUpgrading an entry-level integrated phono preamp\u003c\/li\u003e\n\u003cli\u003eCompact desktop or living-room analog systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eNot ideal for\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eTurntables that only provide USB audio\u003c\/li\u003e\n\u003cli\u003eUsers needing Bluetooth or digital inputs\u003c\/li\u003e\n\u003cli\u003eDirectly driving passive speakers or headphones\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eEMiUZEK Buying Notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBox X5 is a phono preamplifier, not a speaker power amplifier.\u003c\/li\u003e\n\u003cli\u003eConnect its RCA output to a line-level AUX input, powered speakers or a separate amplifier; do not connect it to another PHONO input.\u003c\/li\u003e\n\u003cli\u003eSelect MM\/MC mode and gain according to the cartridge manufacturer's output specification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cstyle\u003e@media (min-width:650px){.pbg__notes .emiuzek-product-content-images{width:calc(148.148% + 50px)!important;margin-left:calc(-48.148% - 50px)!important}}@media (max-width:649px){.pbg__notes .emiuzek-product-content-images{width:100%!important;margin-left:0!important;margin-right:0!important}}.pbg__notes .emiuzek-product-content-images img{display:block;width:100%;height:auto}\u003c\/style\u003e\u003cdiv class=\"emiuzek-product-content-images\" style=\"margin:32px 0;\"\u003e\n\u003cp style=\"margin:24px auto;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0604\/7422\/8829\/files\/BOXx5002.webp?v=1758442694\" alt=\"Fosi Audio Box X5 MM and MC phono preamplifier\" loading=\"lazy\" style=\"display:block;width:100%;max-width:1000px;height:auto;margin:0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin:24px auto;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0604\/7422\/8829\/files\/BOXx5007.webp?v=1758442694\" alt=\"Fosi Audio Box X5 front and rear connections\" loading=\"lazy\" style=\"display:block;width:100%;max-width:1000px;height:auto;margin:0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin:24px auto;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0604\/7422\/8829\/files\/BOXx5008.webp?v=1758442694\" alt=\"Fosi Audio Box X5 turntable connection diagram\" loading=\"lazy\" style=\"display:block;width:100%;max-width:1000px;height:auto;margin:0 auto;\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eDoes Box X5 support both MM and MC cartridges?\u003c\/h3\u003e\u003cp\u003eYes. It provides selectable MM\/MC operation and four gain settings.\u003c\/p\u003e\n\u003ch3\u003eDoes it include Bluetooth, USB or optical input?\u003c\/h3\u003e\u003cp\u003eNo. Box X5 is an analog phono stage with RCA phono input and RCA line output.\u003c\/p\u003e\n\u003ch3\u003eCan it power passive speakers?\u003c\/h3\u003e\u003cp\u003eNo. A separate power amplifier or powered speakers are required.\u003c\/p\u003e\n\u003ch3\u003eCan it be connected to powered speakers?\u003c\/h3\u003e\u003cp\u003eYes, provided the speakers have a compatible analog line input and their own volume control.\u003c\/p\u003e\n\u003ch3\u003eShould I connect the turntable ground wire?\u003c\/h3\u003e\u003cp\u003eYes, when the turntable provides one. Proper grounding helps reduce hum.\u003c\/p\u003e\n\u003ch3\u003eCan it be used as a normal line-level preamplifier?\u003c\/h3\u003e\u003cp\u003eNo. Its gain and RIAA equalization are designed specifically for phono cartridges.\u003c\/p\u003e\n\u003ch2\u003eHOW TO CONNECT\u003c\/h2\u003e\n\u003ch3\u003eTurntable to integrated amplifier\u003c\/h3\u003e\u003cp\u003eSource icon: turntable\u003cbr\u003eSource: MM or MC turntable\u003cbr\u003eConnection: RCA phono input + ground\u003cbr\u003eOutput connection: RCA line output\u003cbr\u003eTarget icon: amplifier\u003cbr\u003eOutput: AUX \/ line input on an integrated amplifier\u003c\/p\u003e\u003cp\u003eNote: Do not connect the Box X5 output to another PHONO input.\u003c\/p\u003e\n\u003ch3\u003eTurntable to powered speakers\u003c\/h3\u003e\u003cp\u003eSource icon: turntable\u003cbr\u003eSource: MM or MC turntable\u003cbr\u003eConnection: RCA phono input + ground\u003cbr\u003eOutput connection: RCA line output\u003cbr\u003eTarget icon: speakers\u003cbr\u003eOutput: Powered speakers with analog input\u003c\/p\u003e\n\u003ch3\u003eTurntable to headphone system\u003c\/h3\u003e\u003cp\u003eSource icon: turntable\u003cbr\u003eSource: MM or MC turntable\u003cbr\u003eConnection: RCA phono input + ground\u003cbr\u003eOutput connection: RCA line output\u003cbr\u003eTarget icon: headphones\u003cbr\u003eOutput: Headphone amplifier connected to headphones\u003c\/p\u003e\u003cp\u003eNote: Box X5 does not include a headphone amplifier; connect its line output to a separate headphone amplifier.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ch3\u003eInputs and outputs\u003c\/h3\u003e\u003cdiv style=\"width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;table-layout:fixed;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"width:42%;padding:11px;border:1px solid #ddd;text-align:left;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding:11px;border:1px solid #ddd;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:11px;border:1px solid #ddd;text-align:left;vertical-align:top;\"\u003eMM \/ MC RCA phono input\u003c\/th\u003e\n\u003ctd style=\"padding:11px;border:1px solid #ddd;vertical-align:top;\"\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:11px;border:1px solid #ddd;text-align:left;vertical-align:top;\"\u003eRCA line output\u003c\/th\u003e\n\u003ctd style=\"padding:11px;border:1px solid #ddd;vertical-align:top;\"\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:11px;border:1px solid #ddd;text-align:left;vertical-align:top;\"\u003eTurntable grounding terminal\u003c\/th\u003e\n\u003ctd style=\"padding:11px;border:1px solid #ddd;vertical-align:top;\"\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eAudio performance\u003c\/h3\u003e\u003cdiv style=\"width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;table-layout:fixed;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"width:42%;padding:11px;border:1px solid #ddd;text-align:left;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding:11px;border:1px solid #ddd;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:11px;border:1px solid #ddd;text-align:left;vertical-align:top;\"\u003eGain\u003c\/th\u003e\n\u003ctd style=\"padding:11px;border:1px solid #ddd;vertical-align:top;\"\u003e38 \/ 48 \/ 56 \/ 66 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:11px;border:1px solid #ddd;text-align:left;vertical-align:top;\"\u003eFrequency Response\u003c\/th\u003e\n\u003ctd style=\"padding:11px;border:1px solid #ddd;vertical-align:top;\"\u003e20 Hz–20 kHz (±0.015 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:11px;border:1px solid #ddd;text-align:left;vertical-align:top;\"\u003eTHD\u003c\/th\u003e\n\u003ctd style=\"padding:11px;border:1px solid #ddd;vertical-align:top;\"\u003e≤0.009%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:11px;border:1px solid #ddd;text-align:left;vertical-align:top;\"\u003eSNR\u003c\/th\u003e\n\u003ctd style=\"padding:11px;border:1px solid #ddd;vertical-align:top;\"\u003e≥92 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:11px;border:1px solid #ddd;text-align:left;vertical-align:top;\"\u003eOperational Amplifier\u003c\/th\u003e\n\u003ctd style=\"padding:11px;border:1px solid #ddd;vertical-align:top;\"\u003eOPA1612\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003ePhysical and power\u003c\/h3\u003e\u003cdiv style=\"width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;table-layout:fixed;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"width:42%;padding:11px;border:1px solid #ddd;text-align:left;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding:11px;border:1px solid #ddd;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:11px;border:1px solid #ddd;text-align:left;vertical-align:top;\"\u003eDimensions\u003c\/th\u003e\n\u003ctd style=\"padding:11px;border:1px solid #ddd;vertical-align:top;\"\u003e4.1 × 6.5 × 1.4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:11px;border:1px solid #ddd;text-align:left;vertical-align:top;\"\u003ePower Supply\u003c\/th\u003e\n\u003ctd style=\"padding:11px;border:1px solid #ddd;vertical-align:top;\"\u003e16 V \/ 1 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e","brand":"Fosi Audio","offers":[{"title":"Black \/ US","offer_id":43721593421917,"sku":"Fosi-Audio-Box-X5-Black-US","price":569.0,"currency_code":"BRL","in_stock":true},{"title":"Black \/ EU","offer_id":43721593454685,"sku":"Fosi-Audio-Box-X5-Black-EU","price":560.0,"currency_code":"BRL","in_stock":true},{"title":"Black \/ UK","offer_id":43721593487453,"sku":"Fosi-Audio-Box-X5-Black-UK","price":560.0,"currency_code":"BRL","in_stock":true},{"title":"Black \/ AU","offer_id":43721593520221,"sku":"Fosi-Audio-Box-X5-Black-AU","price":560.0,"currency_code":"BRL","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0604\/7422\/8829\/files\/Fosi_Audio_Box_X5_00f87f82-b428-4fbc-8805-a33e85b96886.webp?v=1785219706","url":"https:\/\/emiuzek.com\/pt-br\/products\/fosi-box-x5","provider":"EMiUZEK","version":"1.0","type":"link"}