Douk Audio M1 PRO Bluetooth Power Amplifier User Manual
- June 4, 2024
- Douk Audio
Table of Contents
Douk Audio M1 PRO Bluetooth Power Amplifier
Features
Using the TDA7498E chip, the maximum output power can reach 160W per channel when using the 35V/5A power supply. M1 PRO supports stereo RCA and Bluetooth 5.0 input, it is compatible with phones, computers, TVs, MP3 players, TV, CD players etc. It is also a digital music player with U-disk input supporting MP3, WAV, APE, FLAC and WMA formats.
A low frequency output will connect to active speakers to enable enhanced bass. Circuit layout and concise wiring ensures that the HiFi sound is clear and clean, no audible noise even at high power output. Unique Bluetooth design using an external antenna. Mini size, aluminum alloy case and gold-plated terminals are durable, with input switch and indicator.
For Bluetooth reception – Turn the toggle switch (No.1) to the BT position. Then you will be able to see the Bluetooth name “BT HIFI AUDIO” on your laptop and you can then click it to connect the Bluetooth function.
Specification
- Model: M1 PRO
- Channels: 0
- Audio input: Bluetooth/RCA/U-disk
- Audio output: banana speaker jacks / low frequency signal (to connect to active subwoofers)
- Support format: MP3, WMA, APE, FLAC, and WAV
- U-disk capacity: max 32G (i.e. USB Memory Stick)
- Bluetooth version: 0
- Speaker impedance: 4-8Ω
- Max output power: 160W x 2 (into a 4Ω load)
- SNR: ≥98dB
- Input sensitivity: 775V
- THD: 05% (1kHz 1W)
- Frequency Response: 20Hz-20KHz (±3dB)
- Working voltage: DC 19-35V
- Colour: Black
- Dimensions (L x W x H): 11811735mm
- Net weight: 455KG
| 160W*2 | THD | W 0.05% | |
|---|---|---|---|
| Max power output | 4Ωload | ||
| Speaker matching | 4-8Ω | SNR | ≥98dB |
| impedance | |||
| Working voltage | 19-35V | Case size | L118.5W117.5H35mm |
| Input sensitivity | 0.775V | Total Weight | 0.48kg |
| Frequency | 20Hz- | ||
| response | 20kHz(±3dB) | ||
Packing list
- Net Weight: 510g/1.12lb
- Package Weight: 1 Kg/2.43lb
- 1x M1 PR0 Amplifier
- 1x Bluetooth antenna
- 1x 32V/5A Power supply
- 1x Instruction manual
Dimensions
Product Overview
Max output power 160w+160w
- Using classic TDA7498E chip. max output power can reach 160W+ 160W, equipped with high-quality
- 32V/SA power supplies enough to drive above 300W passive speakers. It has a good match with
- outdoor/ bookshelf/ computer/ desktop/ceiling /tloor standing speakers
Mini size with exquisite appearance
Aluminum alloy case and gold-plated terminals are fashionable and durable with input switch and indicator, very suitable for home and desktop audio system use.
Stereo rca and Bluetooth 5.0 input
MI PRO Supports stereo RCA and Bluetooth 5.0 input, compatible with phones, Computers, TVs, MP3 players, TV, Echo Dot, CD players etc. lf is also a digital music player with U-disk input Supporting MP3, WAV, APE, FLAC and WMA lossless formats.
A low-frequency output
A low frequency output is specially designed to connect active speakers and the bass effects can be strongly enhanced. The sound is more delicate with treble and bass control, the shock in a auditory effects. Make you feel like in the cinema.
Circuit Layout
Circuit layout and concise wiring to ensure Hifi clear and clean sound no audible noise even at high power output.
Douk Audio M1 Pro Hi-Fi 320W Bluetooth 5.0 Power Amplifier Stereo Subwoofer Amp USB Music Player: Home Audio & Theatre. Douk Audio M1 Pro Hi-Fi 320W Bluetooth 5.0 Power Amplifier Stereo Subwoofer Amp USB Music Player.
The RCA connector mentioned in the text – (or RCA Phono connector or Phono connector) is a type of electrical connector commonly used to carry audio and video signals. The name RCA derives from the company Radio Corporation of America, which introduced the design in the 1930s. (The word phono in phono connector is an abbreviation of the word phonograph because this connector was originally created to allow the connection of a phonograph turntable to a radio receiver. RCA jacks are often used in phono inputs, a set of input jacks usually located on the rear panel of a preamp, mixer or amplifier, especially on early radio sets, to which a phonograph or turntable is attached.)
This is what the RCA plugs look like
Front and Rear Panels of the Amplifier
Frequently Asked Questions
All the cables are connected to the amplifier, but there is no sound output?****
Check the POWER indicator is on, press the POWER button if the light is still
off, At this point if you can find another DC supply with the same output
voltage power supply (must 12V min) to check if the power supply has failed.
If the POWER indicator light is on, check whether the corresponding input
signal is selected correctly.
If the indicator light is on, check whether the VOL knob is in the minimum
position. If so, turn clockwise to normal Volume.
If both of the above are normal, check if the input device is paused, muted,
or the volume is minimized.
Why is the sound cracking?****
This product is used in the DAC decoder and can also be used as a preamplifier. If the rear stage device has the highest volume and the front stage is also the largest, it is easy to be distorted. In this case, you only need to turn down the volume of the previous or subsequent stage.
Why do the loudspeakers make a lot of electric noise?****
if you are not using the original power supply, please replace the power supply before testing. Many power supplies in the market produce a large amount of interference, this will cause a lot of current sound/noise.
Why is the speaker noisy when I plug in the input cable but no sound source is connected?****
If an unshielded signal line is used, an interfering signal will enter the power amplifier. It is recommended that you use a shielded signal cable or unplug the signal cable.
Why does the amplifier stop working after a period of time? Then after a period of time with no sound, it works again?****
The amplifier is probably overheating. It is protected, and the output power may have exceeded the designed power, best to lower the volume a little and then try again.
why does the volume of the amplifier stay the same, while the sound of different audio sources (such as CDS and mobile phones) is different?****
Different types of audio equipment have different output frequency ranges. The mobile phone is usually 0.35mV and the CD is 1V. The signal output frequency of the sound source will directly affect the volume.
Why is the sound of the power amplifier poor at the beginning, the high frequency is not clear, but after working for 8 hours the sound is normal?****
Speakers and amplifiers are a very sensitive devices that also need to know each other. Sounds usually get better after working on new amplifiers and speakers for more than ten hours.
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