{"product_id":"fosi-audio-sk01","title":"Fosi Audio SK01 | Headphone Amplifier and Preamp","description":"\u003cp\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto; width: 65%;\" alt=\"fosi-audio-logo\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/fosi-audio-logo.webp?v=1753282757\"\u003e\u003c\/p\u003e\n\u003ch4\u003eThe Fosi Audio SK01 is a Powerful Headphone Amp, a Customizable Analog Preamp, and An Accurate Equalizer, All-in-One Portable Device\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated treble, middle, and bass controls with midpoint positioning\u003c\/li\u003e\n\u003cli\u003eAbundant interfaces and adjustments for personalized sound output\u003c\/li\u003e\n\u003cli\u003eCaters to both desktop and portable music listening\u003c\/li\u003e\n\u003cli\u003eUp to 6 hours of continuous usage with built-in high-capacity battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Fosi Audio SK01 headphone amplifier sitting on wooden desk bottom left 3 quarter angle with iems, headphone and device plugged in\" height=\"2048\" width=\"2048\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/fosi-audio-sk01-lifestyle.webp?v=1753299264\"\u003e\u003c\/p\u003e\n\u003ch3\u003eTailor-Made Audio Experience\u003c\/h3\u003e\n\u003cp\u003eThe Fosi Audio SK01 is a versatile headphone amplifier designed for both desktop and portable setups, offering powerful amplification and precise tone shaping. With its tri-band EQ for treble, mids, and bass, you can tailor your sound to suit your personal preferences.\u003c\/p\u003e\n\u003cp\u003eWhether used as a high-performance headphone amp, an adjustable analog preamp, or a detailed equalizer, the SK01 enhances your listening experience with refined sound and customizable character.\u003c\/p\u003e\n\u003cp\u003eAs a headphone amp, it enhances your listening with added depth and clarity. As a preamp, it delivers clean, powerful signal amplification. And as an equalizer, it fine-tunes your sound with precise control, revealing the full detail of every instrument.\u003c\/p\u003e\n\u003ch3\u003eUnmatched Headphone Compatibility\u003c\/h3\u003e\n\u003cp\u003eUnlock powerful performance and flexible connectivity with the Fosi Audio SK01. Featuring a 3.5mm line-in, 3.5mm line-out, and a combined 3.5mm\/6.35mm headphone output, the SK01 adapts to your setup with ease. With up to 2400mW RMS output at 32Ω and support for headphone impedances ranging from 16–300Ω, it delivers dynamic, high-quality sound in a compact and portable form, perfect for elevating any listening environment.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Fosi SK01 headphone amplifier connection points and functional knobs graphic\" height=\"1500\" width=\"2048\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/fosi-audio-sk01-functions.webp?v=1753299418\"\u003e\u003c\/p\u003e\n\u003ch3\u003eAdditional Features\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eLong-Lasting Battery\u003c\/strong\u003e\u003cbr\u003eEnjoy up to 6 hours of continuous usage with the built-in high-capacity battery, while the isolated power design rejects interference, providing a pure listening experience without any interruptions.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExquisite Design\u003c\/strong\u003e\u003cbr\u003eCrafted with an aluminum alloy body, the SK01 is both elegant in appearance and touch, adding a touch of sophistication to your desktop setup.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTri-Band Control\u003c\/strong\u003e\u003cbr\u003eWith independent treble, midrange, and bass controls—plus central detents for tone bypass—dialing in the perfect balance is effortless. In high-impedance mode, the SK01 delivers up to 2400mW of powerful output.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDiverse Capabilities\u003cbr\u003e\u003c\/strong\u003eQuickly restore the original sound with a single press of the tone-defeat button. Enjoy immersive late-night listening with the loudness function, and fine-tune output for different headphones using the adjustable gain switch.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput:\u003c\/strong\u003e 3.5mm line-in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e 3.5mm headphone, 6.35mm headphone, 3.5mm line-out\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmp Output Max. Power\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Gain: RMS 2400mw\/ 32Ω\u003c\/li\u003e\n\u003cli\u003eLow Gain: RMS 300mw\/32Ω\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Range:\u003c\/strong\u003e 20Hz-20kHz (±0.5dB)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTHD+N:\u003c\/strong\u003e 0.001% @ 1kHz and 770mV\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSNR:\u003c\/strong\u003e ≥108dB\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Matching Impedance:\u003c\/strong\u003e 16-300Ω\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 4.76\" x 2\" x 1.69\"\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.641b\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e 5V, USB Type-C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFosi Audio SK01 Amplifier and preamp\u003c\/li\u003e\n\u003cli\u003eUSB-A\/C to USB-C cable\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" title=\"Fosi Audio SK01 user manual\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2251\/7913\/files\/SK01_User_Manual.pdf?v=1691480635\" target=\"_blank\"\u003eUser manual\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fosi Audio","offers":[{"title":"New","offer_id":41829175492683,"sku":"FSI-SK01","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Open Box","offer_id":41829175525451,"sku":"FSI-SK01-OB","price":69.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/fosi-audio-sk01-thumb.webp?v=1753299263","url":"https:\/\/bloomaudio.mom\/products\/fosi-audio-sk01","provider":"Bloom Audio","version":"1.0","type":"link"}