Muse HiFi M3 Ultra Portable Tube DAC & Headphone Amplifier

The M3 Ultra is a wired USB DAC and amplifier with no built-in battery or Bluetooth, making it a focused solution for listeners who prioritize high-resolution wired audio and compact tube amplification.

Bring the character of vacuum-tube audio to your portable setup with the Muse HiFi M3 Ultra. Combining dual JAN6418 military-grade vacuum tubes with an ESS ES9028Q2M DAC and ES9603Q amplification chipset, the M3 Ultra delivers a detailed, powerful and naturally engaging listening experience in an ultra-compact 55g design.

Its fully balanced audio architecture supports high-resolution PCM up to 32-bit/384kHz and native DSD256 decoding. With both 3.5mm single-ended and 4.4mm balanced outputs, it provides up to 460mW @ 32Ω through 3.5mm and 480mW @ 32Ω through 4.4mm.

The distinctive “World Gate” open-frame design showcases the JAN6418 tubes while helping with heat dissipation. Triple anti-vibration technology combines circuit-level, algorithmic and physical silicone damping to reduce tube microphonics during portable use.

Key Features

• Dual JAN6418 military-grade vacuum tubes
• ESS ES9028Q2M DAC
• ES9603Q amplification chipset
• SA9137L USB audio chipset
• PCM up to 32-bit/384kHz
• Native DSD256 decoding
• 3.5mm single-ended and 4.4mm balanced outputs
• Output power: 460mW @ 32Ω (3.5mm) / 480mW @ 32Ω (4.4mm)
• THD+N: 0.0004% (3.5mm) / 0.0003% (4.4mm)
• SNR: up to 121dB
• USB-C input
• Independent volume control with power-off memory
• Triple anti-vibration and microphonic cancellation technology
• Dimensions: 65 × 46.5 × 16mm
• Weight: approximately 55g
• Compatible with Android, iOS, Windows and other USB audio devices