{"product_id":"fosi-audio-sk02","title":"Fosi Audio SK02","description":"\u003cp\u003eFosi Audio SK02 is a compact desktop USB and optical DAC\/headphone amplifier with 3.5mm and 4.4mm headphone outputs.\u003c\/p\u003e\u003cp\u003eAn ES9038Q2M DAC, PCM 32-bit\/384kHz and DSD256 decoding plus up to 755mW at 32Ω provide a capable all-in-one source for wired headphones and line-output systems.\u003c\/p\u003e\u003ch2\u003eWhy it stands out\u003c\/h2\u003e\u003ch3\u003eHi-res desktop DAC\u003c\/h3\u003e\u003cp\u003eES9038Q2M conversion supports PCM 384kHz and DSD256 over USB.\u003c\/p\u003e\u003ch3\u003eDual headphone outputs\u003c\/h3\u003e\u003cp\u003e3.5mm single-ended and 4.4mm outputs support a wider range of headphone cables.\u003c\/p\u003e\u003ch3\u003eStrong 4.4mm drive\u003c\/h3\u003e\u003cp\u003eUp to 755mW at 32Ω provides useful power for many full-size headphones.\u003c\/p\u003e\u003ch3\u003eDAC, headphone amp and pre-out\u003c\/h3\u003e\u003cp\u003eThe 3.5mm line output can feed powered speakers or an external amplifier.\u003c\/p\u003e\u003ch2\u003eBest for\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDesktop wired headphone systems\u003c\/li\u003e\n\u003cli\u003ePC and Mac high-resolution audio\u003c\/li\u003e\n\u003cli\u003eUsers with 4.4mm headphone cables\u003c\/li\u003e\n\u003cli\u003eDAC\/preamp use with powered speakers or an amplifier\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eNot ideal for\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAnalog source input\u003c\/li\u003e\n\u003cli\u003eBluetooth wireless playback\u003c\/li\u003e\n\u003cli\u003eMicrophone or gaming-chat input\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"emiuzek-product-content-images\" style=\"grid-column:1 \/ -1;width:100%;max-width:1100px;margin:8px auto 32px;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0604\/7422\/8829\/files\/FosiAudio_SK02_003_57e84bb4-a6ad-4f89-b997-67b84ac5b6a9.webp?v=1758676033\" alt=\"Fosi Audio SK02 ES9038Q2M DAC and high-resolution audio performance\" loading=\"lazy\" style=\"display:block;width:100%;max-width:1100px;height:auto;margin:0 auto 24px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0604\/7422\/8829\/files\/FosiAudio_SK02_006_bc09460f-a499-4039-a02f-da7dcbbef95c.webp?v=1758676033\" alt=\"Fosi Audio SK02 USB, optical, 3.5mm and 4.4mm headphone connections\" loading=\"lazy\" style=\"display:block;width:100%;max-width:1100px;height:auto;margin:0 auto 24px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0604\/7422\/8829\/files\/FosiAudio_SK02_007_e6c255dc-f204-4983-be7b-dc8d0c68dd74.webp?v=1758676033\" alt=\"Fosi Audio SK02 computer, TV, headphone and powered speaker setup\" loading=\"lazy\" style=\"display:block;width:100%;max-width:1100px;height:auto;margin:0 auto 24px;\"\u003e\n\u003c\/div\u003e\u003ch2\u003eEMiUZEK Buying Notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSK02 accepts USB and optical digital inputs only; it has no analog input.\u003c\/li\u003e\n\u003cli\u003eThe 4.4mm connection is for headphones; verify cable termination before use.\u003c\/li\u003e\n\u003cli\u003eIts 3.5mm output can operate as line out, while optical can also be passed out for a downstream DAC.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eCan I connect an analog source?\u003c\/h3\u003e\u003cp\u003eNo. Inputs are USB and optical digital audio.\u003c\/p\u003e\u003ch3\u003eDoes it support balanced headphones?\u003c\/h3\u003e\u003cp\u003eIt provides a 4.4mm headphone output; use a correctly terminated compatible cable.\u003c\/p\u003e\u003ch3\u003eCan it feed powered speakers?\u003c\/h3\u003e\u003cp\u003eYes. Use the 3.5mm line output.\u003c\/p\u003e\u003ch3\u003eCan it drive passive speakers?\u003c\/h3\u003e\u003cp\u003eNo. Add a power amplifier.\u003c\/p\u003e\u003ch3\u003eWhat is the USB maximum?\u003c\/h3\u003e\u003cp\u003ePCM 32-bit\/384kHz and DSD256 from compatible software and sources.\u003c\/p\u003e\u003ch3\u003eCan it output optical audio?\u003c\/h3\u003e\u003cp\u003eYes. The shared optical connection supports optical output for compatible downstream equipment.\u003c\/p\u003e\u003ch2\u003eHOW TO CONNECT\u003c\/h2\u003e\u003ch3\u003eComputer headphones\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSource:\u003c\/strong\u003e PC or Mac\u003cbr\u003e\u003cstrong\u003eConnection:\u003c\/strong\u003e USB-C audio\u003cbr\u003e\u003cstrong\u003eOutput:\u003c\/strong\u003e 3.5mm or 4.4mm headphone\u003cbr\u003e\u003cstrong\u003eTarget:\u003c\/strong\u003e 16–300Ω headphones\u003cbr\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Select the correct gain and output mode.\u003c\/p\u003e\u003ch3\u003eTV headphones\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSource:\u003c\/strong\u003e TV or console\u003cbr\u003e\u003cstrong\u003eConnection:\u003c\/strong\u003e Optical PCM\u003cbr\u003e\u003cstrong\u003eOutput:\u003c\/strong\u003e Headphone output\u003cbr\u003e\u003cstrong\u003eTarget:\u003c\/strong\u003e Wired headphones\u003cbr\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Set the source to PCM stereo.\u003c\/p\u003e\u003ch3\u003ePowered speakers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSource:\u003c\/strong\u003e Computer or optical source\u003cbr\u003e\u003cstrong\u003eConnection:\u003c\/strong\u003e USB or optical\u003cbr\u003e\u003cstrong\u003eOutput:\u003c\/strong\u003e 3.5mm line out\u003cbr\u003e\u003cstrong\u003eTarget:\u003c\/strong\u003e Powered speakers or amplifier\u003cbr\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Use line-out mode and manage system volume safely.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ch3\u003eAudio performance\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDAC chip\u003c\/td\u003e\n\u003ctd\u003eESS ES9038Q2M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB maximum\u003c\/td\u003e\n\u003ctd\u003ePCM 32-bit \/ 384kHz; DSD256\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical maximum\u003c\/td\u003e\n\u003ctd\u003e24-bit \/ 192kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeadphone impedance\u003c\/td\u003e\n\u003ctd\u003e16–300Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.5mm output\u003c\/td\u003e\n\u003ctd\u003e190mW at 32Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4.4mm output\u003c\/td\u003e\n\u003ctd\u003e755mW at 32Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD\u003c\/td\u003e\n\u003ctd\u003e≤0.001% at 1kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eConnections and physical\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003eUSB, optical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs\u003c\/td\u003e\n\u003ctd\u003e3.5mm headphone, 4.4mm headphone, 3.5mm line out \/ optical out\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response\u003c\/td\u003e\n\u003ctd\u003e20Hz–20kHz (±0.02dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e5V USB-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e121 × 51 × 43mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e380g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eRecommended System Setup\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSetup\u003c\/th\u003e\n\u003cth\u003eConnection\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eComputer headphones\u003c\/td\u003e\n\u003ctd\u003eComputer → USB → SK02 → Headphones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTV headphones\u003c\/td\u003e\n\u003ctd\u003eTV optical PCM → SK02 → Headphones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePowered speakers\u003c\/td\u003e\n\u003ctd\u003eDigital source → SK02 line out → Powered speakers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eAdditional Product Content\u003c\/h2\u003e\u003ch3\u003eFosi Audio product comparison\u003c\/h3\u003e\u003cp\u003eCompare the models by the differences that most affect system matching and everyday use.\u003c\/p\u003e\u003cdiv style=\"max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"min-width:860px;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"min-width:150px;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"min-width:190px;\"\u003eSK02\u003c\/th\u003e\n\u003cth style=\"min-width:190px;\"\u003eSK01\u003c\/th\u003e\n\u003cth style=\"min-width:190px;\"\u003eQ4\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct position\u003c\/th\u003e\n\u003ctd\u003eHi-res desktop DAC\/amp\u003c\/td\u003e\n\u003ctd\u003eAnalog headphone amp\/preamp\u003c\/td\u003e\n\u003ctd\u003eEntry DAC\/amp with tone controls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDAC chip\u003c\/th\u003e\n\u003ctd\u003eES9038Q2M\u003c\/td\u003e\n\u003ctd\u003eNo DAC\u003c\/td\u003e\n\u003ctd\u003e97220-based chipset\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMain inputs\u003c\/th\u003e\n\u003ctd\u003eUSB, optical\u003c\/td\u003e\n\u003ctd\u003e3.5mm analog\u003c\/td\u003e\n\u003ctd\u003eUSB, optical, coaxial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUSB maximum\u003c\/th\u003e\n\u003ctd\u003e32-bit \/ 384kHz, DSD256\u003c\/td\u003e\n\u003ctd\u003eNo USB audio\u003c\/td\u003e\n\u003ctd\u003e24-bit \/ 96kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeadphone outputs\u003c\/th\u003e\n\u003ctd\u003e3.5mm, 4.4mm\u003c\/td\u003e\n\u003ctd\u003e3.5mm, 6.35mm\u003c\/td\u003e\n\u003ctd\u003e3.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum output at 32Ω\u003c\/th\u003e\n\u003ctd\u003e755mW via 4.4mm\u003c\/td\u003e\n\u003ctd\u003e2400mW high gain\u003c\/td\u003e\n\u003ctd\u003e100mW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAnalog line output\u003c\/th\u003e\n\u003ctd\u003e3.5mm\u003c\/td\u003e\n\u003ctd\u003e3.5mm\u003c\/td\u003e\n\u003ctd\u003eRCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTone controls\u003c\/th\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003eThree-band\u003c\/td\u003e\n\u003ctd\u003eBass and treble\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery operation\u003c\/th\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBest use\u003c\/th\u003e\n\u003ctd\u003eHi-res desktop headphones\u003c\/td\u003e\n\u003ctd\u003ePowerful analog amplification\u003c\/td\u003e\n\u003ctd\u003eSimple PC\/TV audio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e","brand":"Fosi Audio","offers":[{"title":"Black","offer_id":43713461911645,"sku":"Fosi-Audio-SK02-Black","price":514.0,"currency_code":"BRL","in_stock":true},{"title":"Orange","offer_id":43713461944413,"sku":"Fosi-Audio-SK02-Orange","price":596.0,"currency_code":"BRL","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0604\/7422\/8829\/files\/Fosi_Audio_SK02_0fc26737-fb8c-40b7-94d2-245bfad66e1b.webp?v=1785381610","url":"https:\/\/emiuzek.com\/pt-br\/products\/fosi-audio-sk02","provider":"EMiUZEK","version":"1.0","type":"link"}