{"product_id":"fosi-audio-md3-magdac-portable-dac-headphone-amplifier","title":"Fosi Audio MD3 MagDAC Portable DAC \u0026 Headphone Amplifier","description":"\u003ch3\u003eFosi Audio MD3 MagDAC Portable DAC \u0026amp; Headphone Amplifier\u003c\/h3\u003e  \u003cp\u003eExperience high-resolution audio wherever you go with the Fosi Audio MD3 MagDAC Portable DAC \u0026amp; Headphone Amplifier, an innovative magnetic USB-C DAC designed to bring premium sound quality, convenience, and personalization to your everyday listening. Featuring a flagship ESS Sabre ES9039Q2M DAC and four ESS ES9603Q amplifier chips, the MD3 delivers detailed, low-distortion audio with support for PCM up to 32-bit\/384kHz and native DSD256. With a compact magnetic design, customizable rear display, and both 3.5mm single-ended and 4.4mm balanced headphone outputs, the MD3 transforms compatible smartphones, tablets, and computers into high-performance portable listening systems.\u003c\/p\u003e  \u003cp\u003eDesigned for music lovers who want exceptional sound without carrying bulky equipment, the MD3 features a strong N52 magnetic attachment system that securely connects to compatible MagSafe-style smartphones and cases. Its lightweight, pocket-sized construction weighs approximately 50 grams and features rounded corners with a premium leather-finished surface for a comfortable, refined appearance. Whether you're commuting, traveling, working, or relaxing at home, the MD3 keeps your DAC conveniently attached to your phone while delivering the clarity and dynamics expected from a dedicated headphone amplifier.\u003c\/p\u003e  \u003cp\u003eAt the heart of the MD3 is its fully balanced amplification system, delivering at least 180mW per channel into 32 ohms through the 4.4mm balanced headphone output and at least 80mW per channel through the standard 3.5mm connection. Supporting headphones with impedances ranging from 16 to 300 ohms, the MD3 offers flexible pairing with modern in-ear monitors, audiophile headphones, and other compatible wired listening devices. Its ESS Sabre DAC and ultra-low noise floor help preserve subtle musical details, accurate instrument separation, and dynamic contrast across a wide range of music genres.\u003c\/p\u003e  \u003cp\u003eOne of the MD3's most convenient features is its dual USB-C design, which supports simultaneous music playback and pass-through charging. Connect an external power source to the upper USB-C port while using the lower USB-C connection with your phone, allowing you to keep listening while your device charges. The MD3 also features a customizable rear display that can showcase personal photos, favorite images, emojis, and animations. Built-in mini games, including Rolling Dice, Wine Bottle, and Rock Paper Scissors, add a playful element to this unique portable audio device. Combining premium audio components, magnetic convenience, and personalized visual features, the Fosi Audio MD3 MagDAC is an excellent companion for anyone looking to upgrade their mobile listening experience.\u003c\/p\u003e  \u003ch4\u003eSpecifications\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Fosi Audio\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e MD3 MagDAC\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Portable magnetic USB DAC and headphone amplifier\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDAC Chip:\u003c\/strong\u003e ESS Sabre ES9039Q2M\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmplifier Chips:\u003c\/strong\u003e ESS ES9603Q ×4\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmplification Design:\u003c\/strong\u003e Balanced headphone amplification\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUSB Connectivity:\u003c\/strong\u003e Dual USB-C ports\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUpper USB-C Port:\u003c\/strong\u003e Audio decoding, image transfer, and charging input\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLower USB-C Port:\u003c\/strong\u003e Audio decoding, image transfer, and firmware upgrades\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePass-Through Charging:\u003c\/strong\u003e Supports simultaneous listening and charging through the dual USB-C configuration\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUSB Audio Classes:\u003c\/strong\u003e UAC 1.0 and UAC 2.0\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUAC 2.0 Maximum PCM Resolution:\u003c\/strong\u003e 32-bit\/384kHz\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUAC 2.0 DSD Support:\u003c\/strong\u003e Native DSD256\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUAC 1.0 Maximum Resolution:\u003c\/strong\u003e 16-bit\/48kHz PCM\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHeadphone Outputs:\u003c\/strong\u003e 3.5mm single-ended and 4.4mm balanced\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3.5mm Output Power:\u003c\/strong\u003e At least 80mW ×2 at 32 ohms (1kHz, THD+N below 1%)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e4.4mm Balanced Output Power:\u003c\/strong\u003e At least 180mW ×2 at 32 ohms (1kHz, THD+N below 1%)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSupported Headphone Impedance:\u003c\/strong\u003e 16–300 ohms\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 20Hz–48kHz (±0.2dB)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3.5mm Signal-to-Noise Ratio:\u003c\/strong\u003e At least 115dB\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e4.4mm Signal-to-Noise Ratio:\u003c\/strong\u003e At least 116dB\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3.5mm Dynamic Range:\u003c\/strong\u003e At least 115dB\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e4.4mm Dynamic Range:\u003c\/strong\u003e At least 116dB\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3.5mm Total Harmonic Distortion + Noise:\u003c\/strong\u003e 0.00075% or less\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e4.4mm Total Harmonic Distortion + Noise:\u003c\/strong\u003e 0.00084% or less\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3.5mm Noise Floor:\u003c\/strong\u003e Less than 1.7µV\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e4.4mm Noise Floor:\u003c\/strong\u003e Less than 2.7µV\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMagnetic Attachment:\u003c\/strong\u003e MagSafe-style magnetic mounting system\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMagnet Type:\u003c\/strong\u003e Strong N52 magnets\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatible Mounting:\u003c\/strong\u003e MagSafe-compatible smartphones and magnetic cases\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e 1.28-inch customizable rear LCD display\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDisplay Customization:\u003c\/strong\u003e Personal images, photos, emojis, and animations\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBuilt-In Display Features:\u003c\/strong\u003e Photo album and interactive mini games\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMini Games:\u003c\/strong\u003e Rolling Dice, Wine Bottle, and Rock Paper Scissors\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Compact portable enclosure with rounded corners\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Premium leather-finished surface\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAvailable Colors:\u003c\/strong\u003e Galaxy and Obsidian\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 70 × 45 × 12mm (2.76 × 1.77 × 0.47 inches)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 50g ±2g (approximately 0.11 lb), excluding cable\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAudio Source Compatibility:\u003c\/strong\u003e Compatible USB-C smartphones, tablets, and computers supporting USB audio output\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFirmware Updates:\u003c\/strong\u003e Supported through the lower USB-C port\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer Warranty:\u003c\/strong\u003e 24 months\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIncluded Accessories:\u003c\/strong\u003e Fosi Audio MD3 MagDAC, USB-C to USB-C adapter, user manual, and quick guide\u003c\/li\u003e \u003c\/ul\u003e  \u003ch4\u003eWhat It's Great At\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-Resolution Portable Audio:\u003c\/strong\u003e The ESS Sabre ES9039Q2M DAC supports PCM up to 32-bit\/384kHz and native DSD256, delivering precise digital-to-analog conversion for detailed music playback from compatible USB-C devices.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eConvenient Magnetic Smartphone Attachment:\u003c\/strong\u003e Strong N52 magnets allow the MD3 to attach to MagSafe-compatible phones and cases, creating a compact listening setup without a freely dangling DAC.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eBalanced Headphone Amplification:\u003c\/strong\u003e Four ESS ES9603Q amplifier chips provide at least 180mW per channel at 32 ohms through the 4.4mm balanced output, offering substantial power for compatible IEMs and wired headphones.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eListen While Charging:\u003c\/strong\u003e Dual USB-C connectivity allows compatible smartphones to charge while the MD3 continues processing audio, making it particularly useful during long listening sessions, travel, and everyday use.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eCustomizable Rear Display:\u003c\/strong\u003e The personalized display supports photos, images, emojis, animations, and interactive mini games, adding a unique visual experience to a high-performance portable DAC.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eLightweight Everyday Portability:\u003c\/strong\u003e Weighing approximately 50 grams and measuring just 12mm thick, the MD3 fits easily into pockets and travel bags while providing a refined alternative to conventional USB dongle DACs.\u003c\/li\u003e \u003c\/ul\u003e  \u003ch4\u003eFAQ Section\u003c\/h4\u003e  \u003cp\u003e\u003cstrong\u003eQ: What is the Fosi Audio MD3 MagDAC?\u003c\/strong\u003e\u003cbr\u003e A: The Fosi Audio MD3 MagDAC is a portable USB-C digital-to-analog converter and headphone amplifier designed to improve wired headphone sound quality when connected to compatible smartphones, tablets, and computers. It combines high-resolution audio processing, magnetic smartphone attachment, balanced headphone amplification, and a customizable rear display.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: Does the Fosi Audio MD3 support high-resolution audio?\u003c\/strong\u003e\u003cbr\u003e A: Yes. The MD3 uses an ESS Sabre ES9039Q2M DAC and supports PCM audio up to 32-bit\/384kHz and native DSD256 in USB Audio Class 2.0 mode. It also supports USB Audio Class 1.0 playback up to 16-bit\/48kHz for compatibility with supported devices.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: Does the Fosi Audio MD3 work with iPhones and Android smartphones?\u003c\/strong\u003e\u003cbr\u003e A: The MD3 is designed for compatible USB-C smartphones, including supported USB-C iPhones and Android devices. Its magnetic attachment works with MagSafe-compatible phones and magnetic cases, while audio playback requires a compatible USB connection. Magnetic attachment and USB audio compatibility should be verified for individual devices and cases.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: Can I charge my phone while using the Fosi Audio MD3?\u003c\/strong\u003e\u003cbr\u003e A: Yes. The MD3 features dual USB-C connectivity with pass-through charging support. Connecting external power to the upper USB-C port while the lower port is connected to a compatible smartphone allows the phone to charge while music continues playing.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: Does the Fosi Audio MD3 have a balanced headphone output?\u003c\/strong\u003e\u003cbr\u003e A: Yes. The MD3 features a 4.4mm balanced headphone output delivering at least 180mW per channel at 32 ohms. It also includes a standard 3.5mm single-ended connection delivering at least 80mW per channel at 32 ohms, making it compatible with a wide selection of wired headphones and in-ear monitors.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: Can I customize the display on the Fosi Audio MD3?\u003c\/strong\u003e\u003cbr\u003e A: Yes. The MD3 features a customizable rear display that supports personal photos, images, emojis, and animations. It also includes a photo album and interactive mini games such as Rolling Dice, Wine Bottle, and Rock Paper Scissors, bringing a personalized element to your portable listening setup.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: Is the Fosi Audio MD3 powerful enough for audiophile headphones?\u003c\/strong\u003e\u003cbr\u003e A: The MD3 supports headphones with rated impedances between 16 and 300 ohms and offers both 3.5mm single-ended and 4.4mm balanced amplification. Its balanced output provides at least 180mW per channel at 32 ohms, making it well suited to many modern IEMs and portable headphones, although particularly demanding headphones may benefit from a more powerful dedicated amplifier.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: How portable is the Fosi Audio MD3 MagDAC?\u003c\/strong\u003e\u003cbr\u003e A: The MD3 measures just 70 × 45 × 12mm and weighs approximately 50 grams without its cable. Its slim design, rounded corners, premium exterior finish, and magnetic attachment make it convenient for commuting, traveling, working, and listening to high-resolution music on the go.\u003c\/p\u003e","brand":"Fosi Audio","offers":[{"title":"Silver","offer_id":62887248461983,"sku":"FOS-MD3-SIL","price":149.99,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":62887248494751,"sku":"FOS-MD3-BLK","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0495\/6910\/4031\/files\/067fc934-aa02-4ee7-ad46-42c811a3e7ad.jpg?v=1791559753","url":"https:\/\/listenup.com\/products\/fosi-audio-md3-magdac-portable-dac-headphone-amplifier","provider":"ListenUp","version":"1.0","type":"link"}