Muse HiFi M7 Player ES9039Q2M Flagship Portable DAC & AMP
The Muse HiFi M7 Player is a flagship portable DAC and headphone amplifier that combines the warmth of analog vacuum tube sound with desktop-level power and modern digital precision. Centered around a high-performance ES9039Q2M DAC and four JAN6418 miniature vacuum tubes, it delivers fully balanced amplification, switchable tube and transistor modes, and exceptional driving power up to 3500mW. With Mag-Mod modular design, replaceable battery and op-amps, DualRail power system, and Bluetooth 5.4 with aptX Lossless, the M7 offers versatile high-fidelity performance for both portable and desktop use.
Fully Balanced Four-Tube Pre-Amplifier Stage
The M7 features a professionally designed fully balanced preamplifier stage with four JAN6418 miniature directly heated pentode tubes. Two tubes per channel independently process positive and negative phase signals, creating a symmetrical analog path that produces natural even-order harmonics for a warm, smooth, and musical tube sound. Users can seamlessly switch between VT (Tube) mode for analog richness and TM (Transistor) mode for precise, transparent solid-state performance. A transverse matrix-style floating suspension system with silicone dampers and metal locking rods effectively eliminates microphonics and vibration for stable portable use.
Premium ES9039Q2M DAC and High-Power Amplification
Equipped with the flagship ESS ES9039Q2M DAC chip paired with a robust 12-op-amp architecture, the M7 delivers highly accurate, well-balanced, and resolving high-resolution audio. It provides a massive 3500mW output through the 4.4mm balanced port and 1750mW through the 3.5mm single-ended output, easily driving demanding headphones. SNR reaches -124dB on 3.5mm and -128dB on 4.4mm for a clean, low-noise background.
Mag-Mod Magnetic Modular Design and Replaceable Components
The innovative Mag-Mod magnetic modular architecture allows effortless access to internal components without tools or screws. Simply remove the magnetic outer cover to swap the dual Japan-made MUSE01 op-amps for different sound signatures. Compatible with popular options such as OPA2134PA and LME49720NA, this design maximizes DIY flexibility right out of the box.
User-Replaceable 18650 Battery and Extended Playtime
The M7 uses a high-capacity 3500mAh 18650 battery that users can easily replace by opening the Mag-Mod cover. It delivers up to 20 hours of playback in Transistor mode and up to 15 hours in Tube mode, providing long listening sessions without frequent recharging.
DualRail Power System for Portable and Desktop Use
The exclusive DualRail dual-power system allows the M7 to switch seamlessly between portable battery operation and desktop mode. On the go it runs on its internal 3.7V battery. When connected to an external 12V DC power supply, it completely bypasses the battery and uses a dedicated DC power path, eliminating ripple and noise for improved power quality, blacker backgrounds, and enhanced microdynamics.
Advanced Bluetooth 5.4 with aptX Lossless
Powered by Qualcomm’s latest QCC3095 Bluetooth chipset, the M7 supports Bluetooth 5.4 with aptX Lossless transmission. This enables stable, high-definition wireless audio with low latency and fast reconnections from smartphones, tablets, or other source devices.
About Muse HiFi
Muse HiFi is a specialist audio brand focused on innovative high-fidelity portable and desktop solutions. The company emphasizes combining classic analog technologies such as vacuum tubes with modern digital processing, modular design, and high power output to deliver distinctive musical experiences for audiophiles.
Technical Specifications
DAC: ES9039Q2M
Vacuum Tubes: 4 x JAN6418
Bluetooth: Qualcomm QCC3095, Bluetooth 5.4 with aptX Lossless
Headphone Outputs: 4.4mm balanced + 3.5mm single-ended
Output Power: 3500mW (4.4mm), 1750mW (3.5mm)
SNR: -124dB (3.5mm), -128dB (4.4mm)
Battery: Replaceable 18650, 3500mAh
Battery Life: Up to 20 hours (Transistor mode), up to 15 hours (Tube mode)
Power Modes: Internal battery / External 12V DC (DualRail)
Op-Amps: Dual replaceable MUSE01 (compatible with OPA2134PA, LME49720NA, etc.)
Operating Modes: VT (Tube) / TM (Transistor)
Q&A
What DAC chip does the Muse HiFi M7 use?
It uses the premium ESS ES9039Q2M DAC chip.
What vacuum tubes are installed in the M7?
It features four JAN6418 miniature directly heated pentode tubes in a fully balanced configuration.
Can I switch between tube and solid-state sound?
Yes, the M7 offers switchable VT (Tube) mode and TM (Transistor) mode.
What is the maximum output power?
It delivers up to 3500mW through the 4.4mm balanced output and 1750mW through the 3.5mm single-ended output.
Does the M7 support Bluetooth?
Yes, it uses the Qualcomm QCC3095 chipset with Bluetooth 5.4 and aptX Lossless support.
Is the battery replaceable?
Yes, it uses a user-swappable 18650 battery with 3500mAh capacity.
What is the Mag-Mod design?
Mag-Mod is a magnetic modular cover system that allows tool-free access for swapping op-amps and the battery.
Can the M7 be used as a desktop DAC/AMP?
Yes, with the DualRail system it supports external 12V DC power for dedicated desktop operation with improved power quality.
