Muse 300: The World's First Desktop DAC/AMP with Its Own Operating System

Muse HiFi has unveiled an unusual desktop audio device called the Muse 300. The company calls it the world's first desktop DAC/AMP with its own operating system, specifically designed for DACs and headphone amplifiers. The idea is to move away from the slow, cluttered interfaces often found in such devices and offer a faster, more responsive way to manage music.

According to Muse HiFi, the hi-fi market has changed: streaming services have become much more convenient, and the quality of streaming audio now satisfies most listeners, even if it doesn't always match local DSD files. So the company sees potential in devices that work more seamlessly with streaming and don't force users to manually download different track versions. The Muse 300 is meant to be that hub for a desktop audio system, sitting between a computer, smartphone, headphones, and speakers.

The main technical challenge is that Muse HiFi didn't use an off-the-shelf Android base. The system is built on a microcontroller platform, where much of the code had to be written from scratch. The Muse 300 and its sibling model U7 involve over 150 MCU interfaces and about 150 state variables, meaning a logic error could cause rare, hard-to-track glitches. So the developers had to rely on a strict architecture, lookup tables, and fixed-point arithmetic instead of more resource-heavy computations.

The Muse 300 features a 5-inch IPS display with 480x854 resolution. The screen isn't just for settings; the manufacturer made it part of the user experience. The device comes with three interface themes: Cyberpunk with a neon look, Minimalistic for a cleaner desktop, and ACG Style with a bright anime aesthetic. The screen can also double as a secondary monitor for a PC.

On the hardware side, the Muse 300 is a serious desktop audio powerhouse. It uses an SA9137L USB controller, a QCC3095 Bluetooth chip, an AK4118 coaxial interface, an ES9039 Ultra DAC, ES9603X2 I/V conversion, OPA1612 filters, TP6120A amplifiers, and NE5532A op-amps. Inputs include USB, coaxial, optical, and Bluetooth, while outputs are RCA, XLR, 6.35mm, and 4.4mm jacks.

Muse HiFi hasn't yet revealed the price or exact release date for the Muse 300, but the concept itself is a notable attempt to rethink the desktop DAC/AMP. Instead of the usual box with a volume knob, the company offers a device with a full visual interface, customizable themes, and its own operating system, aimed at making hi-fi audio more accessible to a wider audience.