Douk Audio M4: 4 Channel Bluetooth Amplifier | 50W x 4 Hi-Fi Power Amp

Elevate your home audio with the Douk Audio M4

The Douk Audio M4 is a compact 4-channel Bluetooth amplifier designed to deliver clean, room-filling power for your home stereo. With a sturdy aluminum case and precise internal layout, it blends into living rooms, home offices, and desks while offering flexible input options and strong, stable performance.

Engineered for versatile setups, the M4 integrates wired and wireless sources with ease, so you can mix and match devices without swapping adapters. The result is a practical, adaptable hub for your music, movies, and podcasts, without overpromising results. It’s about potential enhancement, not guarantees.

Key capabilities at a glance

• 4 channels of power with independent volume control per channel, enabling simultaneous listening with personalized balance.
• Max output up to 50W×4, backed by a robust 24V/4.5A power supply to drive most home speakers.
• Bluetooth 5.0 with a high-gain antenna, offering more stable wireless reception for compatible devices.
• Two groups of stereo RCA inputs or outputs that can be toggled to suit input/output needs.

Input sources and flexible playback

• Wired 2-group stereo RCA inputs and outputs for classic gear like TVs, CD players, or PCs, with easy switching to adapt to different listening scenarios.
• Wireless Bluetooth 5.0 input for quick pairing with phones, laptops, and streaming devices, plus a dedicated USB (U-disk) input for local music playback in common formats (MP3, WAV, APE, FLAC, WMA).
• Compact onboard electronics designed for stable long-time operation, with separate signal paths to help protect the audio circuit integrity.

Design, build, and living space fit

The M4’s CNC-machined aluminum alloy enclosure with an anodized finish provides a premium, durable look that fits in modern interiors. Its compact footprint reduces desk clutter while maintaining a clean, low-profile presence that complements both home theater and desktop audio setups. This combination of form and function makes it a practical addition to a variety of listening environments.

Note: While the M4 offers a range of connection options and real-world use cases, actual performance depends on your specific speakers, cables, and source devices. Consider the M4 as a flexible amplifier option that could unlock new ways to enjoy your existing gear.