HiFiGo MUSEHiFi M3 Ultra Portable Tube DAC Amp with JAN6418 Vacuum Tube, 460mW/480mW Balanced Output, USB C Dongle DAC for IEMs & Headphones, Amplifier for Phone/PC/Mac — Open-Box, 11% Off

JAN6418 Military-grade Vacuum Tube – Most portable DACs rely on solid-state chips that can sound cold and clinical. The M3 Ultra uses a genuine JAN6418 vacuum tube – a military-spec component that delivers rich harmonics, smooth mids, and natural decay. Vocals feel more intimate, guitars have body, and fatigue melts away after hours of listening. You get that sought-after "tube warmth" without the desktop footprint.

Triple Noise Reduction – Vacuum tubes are sensitive to vibration, which can cause microphonics – that annoying ringing sound when you touch or move the DAC. M3 Ultra solves this with a patented triple noise reduction system: circuit‑level balanced design, algorithmic microphonics cancellation, and physical shock absorption. The result? Dead‑quiet performance whether it’s dangling from your phone in your pocket or sitting on your desk.

460mW / 480mW Balanced Output – Don’t let its tiny size fool you. The M3 Ultra delivers 460mW (3.5mm) and 480mW (4.4mm balanced) of clean power. That means it can handle everything from ultra‑sensitive IEMs to demanding planar magnetic headphones. Whether you’re using multi‑BA IEMs on a crowded subway or HD 600s at your desk, you’ll have more than enough headroom.

Ultra‑low Distortion – Tube sound often comes with high distortion. Not here. The M3 Ultra keeps THD+N as low as 0.0003% (4.4mm) while preserving the tube’s musical character. You get the best of both worlds: the rich, organic texture of analog along with the low‑distortion clarity of high‑end solid‑state design.

All your Hi‑Res Files Covered – Under the hood, an ES9028Q2M DAC chip ensures accurate digital‑to‑analog conversion. The M3 Ultra supports PCM up to 32bit/384kHz and DSD256, so files from Tidal, Apple Music Lossless, or your local library play at full resolution. 3.5mm single‑ended and 4.4mm balanced outputs mean it works with almost any wired headphone you own.

Model: M3 Ultra DAC Chip: ES9028Q2M Op-amp Chip: ES9603Q USB Chip: SA9137L Input Interface: USB Output Interface: 3.5mm single-ended / 4.4mm balanced Decoding Specifications: 32bit 384kHz / DSD256 Signal-to-Noise Ratio: 3.5mm: 120dB; 4.4mm: 121dB (1kHz, A-weighted, 32Ω load) Drive: 3.5mm: 460mW; 4.4mm: 480mW (A-weighted, 32Ω load) Total Harmonic Distortion: 3.5mm: 0.0004%; 4.4mm: 0.0003% (A-weighted, 32Ω load) Special Features: Tube-like output, triple vibration damping and noise reduction, fully balanced circuitry Weight: Approx. 55g