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DOUK AUDIO M1 MAX Integrated Amplifier
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Douk Audio M1 MAX Class D Integrated Amplifier TPA3255 Bluetooth 5.1 aptX HD 2x120W 4 ohms
The Douk Audio M1 MAX is a compact Class D stereo amplifier designed to efficiently drive a wide range of passive speakers. It is based on the TPA3255 chip, known for its excellent efficiency and low distortion, allowing it to reach a maximum power of up to 2x250W depending on the power supply used. It is supplied here with a 48V 5A power supply delivering up to 2x120W into 4 ohms.
It features comprehensive connectivity including Bluetooth 5.1 inputs (SBC, AAC, aptX, aptX HD), stereo RCA, and USB playback (U-disk), ensuring wide compatibility with smartphones, computers, and many other devices.
On the output side, it offers speaker binding posts (banana plugs compatible) as well as a 3.5mm AUX output allowing connection of an active subwoofer or a second amplifier for a 2.1 or more complex setup.
The unit benefits from high-quality audiophile components such as Rubycon capacitors, WIMA coupling capacitors, and pure copper inductors, ensuring clean and detailed sound reproduction.
Its technical performance includes an SNR ≥110dB, THD+N of 0.01%, and a frequency response of 20Hz to 20kHz (±1dB), ensuring accurate and dynamic reproduction.
Douk Audio M1 MAX: High-power Class D TPA3255 amplification
The M1 MAX uses the TPA3255 chip from Texas Instruments, a benchmark in modern Class D amplifiers. This architecture offers excellent energy efficiency, low heat generation, and strong current capability, allowing it to effectively drive most home speakers.
Depending on the power supply used (24V to 48V), output power varies significantly, reaching up to 250W per channel, with typical values ranging from 65W to 185W RMS depending on impedance and power supply (48V 5A power supply included).
This flexibility allows the amplifier to adapt to different uses, from compact HiFi systems to more powerful installations.
Douk Audio M1 MAX: High-quality Bluetooth 5.1 aptX HD
The integrated Bluetooth module is based on a QCC304X chip, compatible with SBC, AAC, aptX, and aptX HD codecs. This ensures stable wireless transmission, low latency, and audio quality close to wired connections. The M1 MAX is therefore an ideal solution for streaming from smartphones, tablets, or computers.
Douk Audio M1 MAX: Audio controls and ergonomics
The amplifier offers a simple and efficient interface with:
- Volume control
- Bass / treble adjustment (±6dB)
- Source selector
- Multimedia control buttons (play, next/previous track)
Status indicators allow real-time visualization of the active source, making daily use easier.
Overview of the Douk Audio M1 Max
| 1 | Input selector |
| 2 | Input indicator |
| 3 | Previous |
| 4 | Play/Pause |
| 5 | Next |
| 6 | Bass control |
| 7 | Treble control |
| 8 | Power/volume control |
| 9 | Bluetooth antenna |
| 10 | USB-Host input |
| 11 | RCA input |
| 12 | 3.5mm AUX output |
| 13 | Speaker terminals |
| 14 | 24-48V DC power input |
Technical specifications
| Specifications | |
|---|---|
| Product type | Integrated amplifier |
| Amplifier chip | TPA3255 |
| Bluetooth chip | QCC304X |
| Inputs | 1x Stereo RCA 1x USB-A Host Bluetooth |
| Outputs | Speaker terminals 1x 3.5mm AUX jack |
| Supported Bluetooth codecs | SBC, AAC, aptX, aptX HD (48KHz/24bit) |
| Supported U-Disk sample rate | 48KHz/16bit |
| U-Disk format | FAT-32 |
| Max U-Disk capacity | 32GB |
| SNR | ≥ 110dB |
| THD+N | 0.01% @ 1kHz |
| Frequency response | 20Hz-20kHz (±1dB) |
| Input sensitivity | 1.4V |
| AUX output level | 1.6V |
| Bass/treble adjustment | ±6dB |
| M1 MAX Output Power | |
|---|---|
| 32V 5A power supply | 78W+78W @ 4 ohms 71W+71W @ 6 ohm 65W+65W @ 8 ohm |
| 36V 6A power supply | 107W+107W @ 4 ohms 100W+100W @ 6 ohms 94W+94W @ 8 ohms |
| 48V 5A power supply | 120W+120W @ 4 ohms 110W+110W @ 6 ohms 102W+102W @ 8 ohms |
| 48V 10A power supply | 250W+250W @ 4 ohms 210W+210W @ 6 ohms 185W+185W @ 8 ohms |
| General | |
|---|---|
| Power supply | 24-48V via DC jack |
| Dimensions | 155 x 125 x 42mm |
| Weight | 800g |
| Package contents | 1x Douk Audio M1 MAX 1x Bluetooth antenna 1x 48V 5A power supply |
| Input | RCA |
| Input | USB |
| Input | Bluetooth |
| Output | Jack 3.5mm |
| Output | Speaker terminal |
| Color | Black |
| Channel | 2 (Stereo) |
| Class | Class D / T |
| Amplifier chip | TPA3255 |
| Power (W) | 120.0 |
| Remote Control | No |
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