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Fosi Unveils MD3 MagDAC Portable Headphone Amplifier at CanJam Singapore
Fosi introduced the MD3 MagDAC, a compact magnetic headphone amplifier and digital-to-analog converter. The device attaches to MagSafe-compatible smartphones and provides wired headphone connectivity along with audio processing.
May 17, 6:00 AM·1m read1 source
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Fosi introduced the MD3 MagDAC at CanJam Singapore 2026. The device is an ultra-compact headphone amplifier and digital-to-analog converter that weighs 20 grams and attaches magnetically to the back of MagSafe-compatible smartphones or cases. The MD3 uses an ESS ES9039Q2M DAC chipset and four ES9603Q op-amps in a balanced circuit.
It includes dual USB-C ports that allow simultaneous audio connection and device charging.
The magnetic back plate contains 16 N52 magnets and an aluminum isolation plate to limit interference. 28-inch color LCD screen and physical buttons provide on-device volume control with 100 steps and memory function. Users can upload personal images to the device through a Vista button that accesses a photo album. The unit features internal aluminum shielding and precision CNC-machined casing.
4mm balanced output. 0, with output power reaching at least 180mW per channel on the balanced output. 4mm output. 00084 percent on the balanced output.
99. The device supports headphone impedances from 16 to 3000 ohms and measures 70 by 45 by 12 millimeters.
