Douk Audio M3 HiFi Bluetooth 5.0 Digital Instruction Manual

Douk Audio M3 HiFi Bluetooth 5.0 Digital

Introductions

Thank you very much for choosing our products! Please read this manual carefully before using the product.

Front & Back panel interface function description

1. AUX working light
2. Bluetooth working light
3. U disk working indicator light
4. USB interface
5. IR
6. Bass cut-off frequency adjustment knob
7. Bass volume adjustment knob (increase clockwise, decreaseCH4 independent volume knob (clockwise increase, counterclockwise decrease)
8. Left and right channel bass frequency adjustment knob
9. High pitch frequency control knob for left and right channel
10. Switch/input channel switch/volume adjustment knob (press the button to turn on, press the button to switch channel when working, press the button to turn off for 3 seconds, rotate the volume clockwise to increase, rotate the volume counter clockwise to decrease) CH3 audio source input or cascade output
11. CH3 working mode switch key (CH3&CH4 is the input mode of sound source when the switch is pressed, and the output mode of sound source when the switch is pressed)
12. Speaker interface (connect 4 speakers according to the product instructions)
13. Power interface(DC power shall not exceed 24V)

Operation Steps

1. Make sure the VOL button to the minimum.
2. Connect the speakers according to the rear panel interface, pay attention to distinguish between positive and negative.
3. Connect the sound source that needs to be used(Optional RCA/Bluetooth, U disk）
4. If the current playback state, inserting a U-disk will automatically jump to the U-disk mode.
5. connect the power adapter.
6. turn on the power and switch to the current input audio source.
7. USB working indicator will flash continuously when the volume is at maximum

Functions of remote control buttons

1. Standby
2. Enter the channel selection key
3. Mute
4. Play/pause
5. PREV
6. NEXT
7. VOL-
8. VOL+
9. Number keys area
10. The mode1-mode3 reserved key for function, this product has no

Specifications

Speaker matching

impedance

|

4-8Ω

|

SNR

|

≥98dB

Working voltage| 12-24V| Bare metal size| L133W128H33mm
Input sensitivity| 0.775V| Total Weight| 0.7kg
Bass cutoff frequency range adjustment|

40-300Hz

|

Package Dimension

|

L240W210H60mm

Frequency response| 20Hz-20kHz(±3dB)| Support music format| MP3，WMA,APE,FLAC,WAV

Warning

1. Please do not open the shell without permission. Improper operation may cause the danger of electric shock.
2. Please use the power supply of the regular manufacturer; otherwise it will damage the machine.
3. Please do not use the machine in a high temperature and humidity environment.

Frequently Asked Questions

Can four Aura ast-2b-04 shakers be operated here with this amount of power?****

I have some powerful ceiling speakers that are 35 watts each. You can always try it again or return it if it doesn’t work. Excellent amp for the money and a very small footprint.

Is there a loud Bluetooth pairing signal coming from this device?****

No, it silently pairs and has OSM experience! highly esteemed

Does channel 3 and channel 4 operate with any amplifier? Can I use my Douk M3 amplifier, for instance, in place of a second M4 amplifier to provide audio for many rooms?****

Hello. In fact, this is possible.

My device has a faint beeping or humming sound that fades in and out at low intensity. Before I ask for a replacement, has anyone else experienced this?****

This issue could occur if the speaker power is set to a high level.

Can the programming from channel 1/2 be repeated on channel 3/4?****

Hello. It can’t be done again right away. CH3/4 must be wired for audio input.

The Bluetooth is no longer able to link after six months of use. Is there any way to solve that?****

This issue arises and is not specific to this device; it affects many Bluetooth devices. Forgetting this device on your phone or other source audio device is, in my opinion, the simplest fix.

How far can a Bluetooth connection extend?****

My equipment is indoors, and I have four speakers mounted in the outer ceiling of a patio. I have moved up to 50 feet away from the device while carrying my phone without losing a Bluetooth signal. I own four of these fantastic gadgets.

Can I receive audio over the USB port on my PC?****

Hello. Through its USB interface, only U-Disk is supported.

In Bluetooth, audio is only available on channels 1 and 2. How are channels 3 and 4 of Bluetooth usable simultaneously?****

Hello. Please press the key on the rear panel. It may output concurrently to 4 channels.

After three weeks of ownership, Bluetooth no longer connects and is not discoverable. Is there a remedy for this?****

1. Cut the ten-meter AC cord off.
2. Go to Bluetooth settings on your source device and remove any previously installed amplifiers.
3. Perform another scan.

Has anyone tried connecting a Google device through Bluetooth so that it can emit audio?****

Hello. Output through Bluetooth is not supported; only input is. It is capable of capturing Bluetooth signals from your phone, computer, etc. and transmitting them to speakers via wires.

Does it work with four 6.5-inch, 2-way Saros Express ceiling speakers?****

Hello. It is not compatible with ceiling speakers.

What kind of battery is needed for the remote?****

I recently received a different remote with the device that requires two AAA batteries.

Does the sub-frequency knob regulate the active and passive sub’s output?****

Hello. It can indeed regulate both.

Is PC audio supported by the USB port?****

Hello. Only U-Disk can use the USB port. We offer amplifiers that can function as a PC sound card if you choose to use one, such as

Have you had a model like that with optical input? I require a passive subwoofer output, two passive speaker outputs, and an optical input.****

Hello. Our 2-CH amplifier has an optical input, therefore

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