Introduction
The Douk Audio M1 PRO is a versatile 2-channel Bluetooth power amplifier designed for home stereo systems. It delivers a maximum output power of 160W + 160W, capable of driving passive speakers above 300W. Featuring Bluetooth 5.0, RCA, and U-disk inputs, it offers broad compatibility with various audio sources. The amplifier also includes a low-frequency output for active subwoofers and independent treble and bass controls for sound customization. Its compact design, aluminum alloy case, and gold-plated terminals ensure durability and a sleek appearance, making it ideal for both home and desktop audio setups.
Package Contents
Before you begin, please ensure all items are present in the package:
- 1 x M1 PRO Power Amplifier
- 1 x 32V/5A Power Supply
- 1 x Bluetooth Antenna
- 1 x User Manual (this document)
Image: The M1 PRO amplifier, its power supply, Bluetooth antenna, and user manual as included in the package.
Setup
1. Physical Overview
Image: Front panel of the M1 PRO amplifier, showing input switch, USB port, and control knobs.
Image: A detailed diagram illustrating the functions of each control and indicator on the front panel of the M1 PRO amplifier.
Image: A detailed diagram illustrating the input and output ports on the rear panel of the M1 PRO amplifier, including RCA, Sub Out, Speaker Out, and DC power input.
2. Connecting Speakers and Audio Sources
The M1 PRO supports various audio inputs and outputs. Follow these steps for proper connection:
- Connect Passive Speakers: Use high-quality speaker wire to connect your passive speakers to the "SPK OUT" terminals on the rear of the amplifier. Ensure correct polarity (+ to + and - to -) for each channel (Left and Right). The amplifier supports 160W + 160W output, suitable for speakers above 300W.
- Connect Active Subwoofer (Optional): If you have an active subwoofer, connect its input to the "SUB OUT" port on the rear of the amplifier using an RCA cable. This allows for a 2.1 channel audio system with enhanced bass.
- Connect Audio Sources:
- RCA Input: Connect devices like CD players, TVs, or other audio sources with RCA outputs to the "INPUT" RCA ports on the rear panel.
- U-Disk Input: Insert a USB flash drive containing MP3, WAV, APE, FLAC, or WMA lossless audio files into the "USB" port on the front panel.
- Bluetooth Input: For wireless connection, ensure the Bluetooth antenna is securely screwed into the "RF" port on the rear.
- Connect Power: Connect the provided 32V/5A power supply to the "DC 19V-35V IN" port on the rear of the amplifier, then plug the power supply into a wall outlet.
Image: Visual representation of the three main audio input types: RCA, Bluetooth 5.0, and U-disk, demonstrating compatibility with various devices.
Image: The M1 PRO amplifier set up with two passive speakers and an active subwoofer, demonstrating its low frequency output capability.
Image: The M1 PRO amplifier integrated into a 2.1 channel audio system, highlighting its compact size and connectivity.
Operating Instructions
1. Power On/Off
To power on the amplifier, ensure all connections are secure, then flip the input switch to either "USB/BT" or "RCA". The power indicator (red LED) will illuminate. To power off, set the input switch to "OFF".
2. Input Selection
Use the toggle switch on the front panel to select your desired audio input:
- USB/BT: Selects either U-disk playback or Bluetooth input. U-disk has priority; if a U-disk is inserted, it will play automatically. If no U-disk is present, it will switch to Bluetooth mode.
- RCA: Selects the RCA analog input.
- OFF: Powers off the unit.
3. Bluetooth Pairing
When the input switch is set to "USB/BT" and no U-disk is inserted, the amplifier will automatically enter Bluetooth pairing mode. The Bluetooth input indicator (blue LED) will blink. On your device (phone, computer, etc.), search for "Douk Audio M1 PRO" in the Bluetooth settings and connect. Once paired, the blue LED will remain solid. To clear all paired devices and restart Bluetooth, long-press the "BT Reset" button on the rear panel.
Video: A demonstration of the Douk Audio M1 PRO Bluetooth amplifier in operation, showcasing its sound output and features.
4. U-Disk Music Playback
Insert a USB flash drive (formatted as FAT32) containing supported audio files (MP3, WAV, APE, FLAC, WMA) into the front USB port. The amplifier will automatically detect and begin playing music. Use the "PREV" and "NEXT" buttons to navigate tracks. The "P/M" button functions as Play/Pause with a short press, and switches between Bluetooth/U-disk mode with a long press (when no U-disk is inserted, it will switch to Bluetooth).
5. Volume and Tone Control
Adjust the main volume using the large "VOLUME" knob. The "BASS" and "TREBLE" knobs allow you to fine-tune the low and high frequencies of the audio output, respectively. These controls provide flexibility to match your listening preferences and speaker characteristics.
Video: A brief display of the Douk Audio M1 PRO Bluetooth amplifier, highlighting its 160W x 2 output capability.
Maintenance
To ensure the longevity and optimal performance of your Douk Audio M1 PRO amplifier, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the exterior of the amplifier. Avoid using liquid cleaners, aerosols, or abrasive materials, as they may damage the finish or internal components.
- Ventilation: Ensure the amplifier has adequate ventilation. Do not block any ventilation openings. Placing the unit in an enclosed space without proper airflow can lead to overheating.
- Environment: Keep the amplifier away from direct sunlight, heat sources, excessive dust, moisture, and strong electromagnetic fields.
- Handling: Handle the unit with care. Avoid dropping it or subjecting it to strong impacts.
- Power Off When Not in Use: If the amplifier will not be used for an extended period, it is recommended to power it off and unplug it from the wall outlet.
Troubleshooting
If you encounter issues with your M1 PRO amplifier, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound output. |
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| Bluetooth connection issues. |
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| Distorted sound or static. |
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| U-disk not playing. |
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Specifications
| Feature | Detail |
|---|---|
| Model | M1 PRO |
| Output Power | 320 Watts (160W + 160W) |
| Number of Channels | 2 |
| Bluetooth Version | 5.0 |
| Input Interfaces | Stereo RCA, Bluetooth 5.0, U-Disk (USB) |
| U-Disk Supported Formats | MP3, WAV, APE, FLAC, WMA |
| Output Interfaces | Speaker Output, Low Frequency Output (for active subwoofer) |
| Power Supply | 32V/5A (included) |
| Voltage Range | 19V - 35V (DC) |
| Dimensions (L x W x H) | 12.13 x 10.04 x 2.48 inches (approx. 30.8 x 25.5 x 6.3 cm) |
| Item Weight | 2.42 pounds (approx. 1.1 kg) |
| Material | Aluminum Alloy Case, Gold-plated Terminals |
Warranty and Support
Douk Audio products are designed for reliability and performance. For specific warranty information, please refer to the warranty card included with your product or visit the official Douk Audio website. For technical support, troubleshooting assistance, or to download the latest user manual, please visit the Douk Audio support page or contact their customer service.
You can also refer to the official User Manual PDF for more detailed information: Download User Manual (PDF)
