Douk Audio M4 HiFi Bluetooth Amplifier

One group of stereo RCA (CH3 and CH4) can be used as audio input or output by switching the selector, to acheive different demands:

Supporting wired 2 groups of stereo RCA and wireless Bluetooth 5.0 input, compatible with most common audio device such as phones, computers, TVs, MP3, TV, CD players etc. With U-disk input, it can be used as a digital music player, supporting MP3, WAV, APE, FLAC and WMA lossless formats.

With 4 groups of speaker sockets output, they can output at the same time and each channel with independent volume control. Its max output power can reach 50W×4, and equipped with high-quality 24V/4.5A power supply, enough to drive most home speakers.

Reasonable circuit layout, concise wiring and high-quality components to ensure HiFi clear sound and long time stable work. Separate design of small and large signal circuit for better circuit protection. Unique Bluetooth design without any external antenna, very practical and beautiful.

Propersize with exquisite appearance, aluminum alloy case is CNC machined and with anodizing process, more fashionable and durable, very suitable for home, office and desktop audio system use.

Model: Douk Audio M4

Channel: 2.0 / 4.0

Audio input: Bluetooth/Stereo RCA/U-disk

Audio output: speaker sockets

U-disk support format: MP3, WMA, APE, FLAC, WAV...

U-disk capacity: max 32G

Bluetooth version: 5.0

Speaker impedance: 4-8Ω

Max output power: 50W*4 (4Ω load)

SNR: ≥98dB

Input sensitivity: 0.775V

THD: 0.05%(1kHz 1W)

Frequency Response: 20Hz-20KHz(±3dB)

Working voltage: DC 12-24V

Color: Black

Dimensions(W*D*H): 128*134*33mm / 5.04*5.28*1.30in

Net weight: 540g / 1.19lb

Package weight: 1100g / 2.43lb