2-8 Days Arrival
30-Day Return
2-Year Warranty
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- One group of stereo RCA (CH3 and CH4) can be used as audio input or output by switching the selector, to acheive different demands:
CH3/CH4 as audio output: 4 groups of speaker sockets can connect to 2 pair of speakers. Besides connect to active speakers, CH3/CH4 also can connect to another M4 amplifier to connect more speakers, in this way multiple amplifiers and multiple speakers can be connected in turn, to achieve one audio signal be shared in several rooms.
CH3/CH4 as audio input: one input corresponds to one output (ex. CH1 speaker socket will output the audio signal that CH1 inputs), which means that two groups of stereo audio signal (or 4 groups of mono audio signal) can be input at the same time. - 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. Bluetooth 5.0 version with high-gain antenna, ensure more stable and faster transmission.
- 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: 533g / 1.18lb
- Package weight: 1100g / 2.43lb
- M4 Amplifier ×1
- 24V/4.5A Power Supply ×1
- Set*Raw Cable Speaker Jacks ×1
- User Manual ×1
Enhanced Bluetooth Connectivity
Bluetooth 5.0 Support: The amplifier features Bluetooth 5.0 for stable and high-quality audio transmission, ensuring seamless wireless streaming.
Easy Input Switching
Toggle Input Selection: Users can easily switch between Bluetooth, U-Disk, and RCA inputs with a simple toggle, providing convenience and flexibility in choosing the audio source.
Customizable Volume Control
4-Channel Volume Control: Each output channel has its own independent volume control, allowing for precise audio adjustment tailored to individual preferences.
Versatile Audio Configuration
Switchable CH3 and CH4: The ability to switch between a 4-CH amplifier and a multi-room music system using CH3 and CH4, offering a dynamic audio setup for different environments.