Fosi Audio MD3 Portable Magnetic DAC / Headphone Amp

Fosi Audio – MD3 Portable Magnetic DAC / Headphone Amp

Premium ESS ES9039Q2M Hi-Res DAC Chip

Quad ES9603Q Chips Deliver 180mW Balanced Output

Magnetic Snap-On Design for Smartphones

1.28" LCD Display with Photo Album & Animations

32-bit/384kHz PCM & Native DSD256 Support

Dual USB-C Ports with Charging Support

Description

Fosi Audio MD3 is a premium portable DAC & headphone amplifier designed for audiophiles on the go. Powered by the ESS ES9039Q2M DAC with quad ES9603Q amps, it delivers clean, high-resolution audio up to 32-bit/384kHz PCM and DSD256. The magnetic (MagSafe-style) design attaches seamlessly to your phone, while dual USB-C ports enable simultaneous charging and playback. It features both 3.5mm and 4.4mm balanced outputs, a rotatable 1.28” LCD display, precise 100-step volume control and a durable CNC aluminium build. All of these features will make your daily commute easier if you like carrying your IEMs or even Headphones everywhere you go.

Specifications:

Brand: Fosi Audio

Model: MD3

Product Type: Portable Magnetic DAC / Headphone Amplifier

DAC Chip: ESS Sabre ES9039Q2M

Amplifier Chips:ESS ES9603Q ×4

USB Audio Class: UAC 2.0, UAC 1.0

Input Ports: Dual USB-C

Outputs: 3.5mm Single-Ended, 4.4mm Balanced

Max Sampling Rate: PCM 32-bit/384kHz, Native DSD256

Output Power: ≥80mW×2 @ 32Ω (3.5mm), ≥180mW×2 @ 32Ω (4.4mm)

Frequency Response: 20Hz–48kHz (±0.2dB)

SNR / Dynamic Range: ≥115dB (3.5mm), ≥116dB (4.4mm)

THD+N: ≤0.00075% (3.5mm), ≤0.00084% (4.4mm)

Noise Floor: <1.7μV (3.5mm), <2.7μV (4.4mm)

Supported Impedance: 16–300Ω

Display: 1.28-inch Rotatable LCD

Weight: 50g (±2g)

Dimensions: 70 × 45 × 12mm

Box Content

What will you get

1x DAC/Amp

1x Type-C to USB-A Connector

1x Straight Type-C to Type-C Cable

1x L-Shape Type-C to Type-C Cable

1x User Manual