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Your cart is empty.Product Description
Support Bluetooth 5.0 input for better transmission stability and quality
With a toggle to switch among Bluetooth / U-Disk / RCA inputs
4 independent volume control for each output channel
CH3 and CH4 can be switched to achieve 4-CH amplifier / multi-room music system
Packing List
- 1*M4 Amplifier
- 1*24V/4.5A Power Supply
- 1 Set*Raw Cable Speaker Jacks
- 1*Manual
Douk Audio M4
Parameters
- Channel: 2.0 / 4.0
- 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
- Model: Douk Audio M4
- 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
- Dimensions(W*D*H): 128*134*33mm / 5.04*5.28*1.30in
- Net weight: 540g / 1.19lb
- Package weight: 1100g / 2.43lb
Panel Introduction
Using Guide
Bill
Reviewed in the United States on March 20, 2025
review of the black 4 channel amp, with 4x red physical volume knobs (and an antenna out the rear) - There aren't many 4 channel amps of this form factor /type available. In my case, the new home I bought, in the bedroom there were already four in-wall speakers with the speaker wiring to behind the TV. I have an LG C4 TV I mounted to the wall so I didn't have the space for a normal full size audio receiver. This has worked great for ~six months now, it was the only option I could find that had individual knobs for each channel, which was important in my use case.I mentioned the model TV I have as it's actually very important, the LG C3 has an analog audio headphone Jack output which is what you would normally use to go from TV to this type of amp, however LG being cheap, eliminated that on the newer C4 line, which forced me to use Bluetooth audio from the TV to this amp (if i wanted to keep volume control via the TV / TV remote, which ofcourse you want!).In this setup the only other option was to use the digital audio optical cable out from TV and then use a optical -> analog converter; I tried this, it worked, however with that you lose all volume control on the TV/remote (and with this mounted behind my TV i wouldnt be able to easily access the physical nobs to adjust volume). this is normal for digital/optical audio output, as its ment to be fed to a full size audio receiver and you control the volume on that device.So I had to go with my least favorable option, and that is to use Bluetooth audio from the LG TV to this four channel amp, I expected it to give me alot of trouble / disconnects / re-pairings based on other things I had read, however that has not been the case at all. The Bluetooth connection has been flawless from the first day I paired it to this amp. Range is not an issue here as this amp is touching the back of the TV (zip tied up behind the TV) It's been about six months now and I have not had ONE issue come up. I used the TV every night and with this setup I can still control the volume from the TV remote (or in my case my apple tv remote which itself via IR controls the TVs volume). very happy with this amp.sorry i dont have a pict of the amp in use- This was the only photo I have right now, but it is place right behind this mount, mounted to the TV itself
DE
Reviewed in the United States on April 7, 2025
The media could not be loaded.
Tyson W
Reviewed in Canada on August 3, 2024
didnt work. sent back and will buy a vintage receiver off marketplace instead....
Drdul fam
Reviewed in Canada on June 17, 2024
I needed to connect my patio speakers and indoor speakers into one unit. Did the trick. You will need a small flat head screwdriver to tighten the speaker wire on the back, it does not have your typical speaker wire connections.
Pat Coulter
Reviewed in Canada on June 12, 2024
Works perfectly with my BST-1 bass shakers. Individual volume controls are ideal for fine tuning haptics. Some say the speaker connectors are too close together but all that's required is to tin the ends of of the wires to prevent fraying. Small form factor makes mounting or finding enough room for the unit a breeze. Highly recommend.
G
Reviewed in Canada on October 7, 2024
2 speakers in the kitchen and 2 in the living room. All adjusted perfectly so when I walk from room to room the music is at the right volume everywhere.
Drowhunter
Reviewed in Canada on August 30, 2023
Bought this amp to drive 4 Dayton Audio BST-2'schannel 4 no longer puts out any audio. Tried to narrow down the issue by swapping left to right the cables input and outputs, and even put the inputs to another amp I have laying around and the one part that consistently fails is the 4th channel.Very disappointed.Edit. All channels working again for unknown reason.
Fine Printer
Reviewed in the United States on August 2, 2023
Mine arrived in a minimally padded brown paper Amazon envelope with no box or the phoenix terminals to connect the speakers. Fortunately I had some from other home distribution amps so I could test it out for damage right away. Seems ok at the moment. I'll be using the extra RCAs for output to yet another amp and they're all connected to a AppleTV and go into a WIFI speaker selector switch so I can control each 4 zones individually and volume control via whatever app I'm using on the phone. Great for this kind of background music job but certainly not for critical listening. Previous reviewer estimating 20-22 watts of power into 8ohm is correct but who knows what the voltage gain is.
Nathan
Reviewed in Canada on August 12, 2023
Have this set up with 4 Dayton audio shakers and this is perfect able to address each of them separately on the fly as your driving is amazing.
techjunkie
Reviewed in Canada on March 26, 2023
Trevor Crunchyflavour
Reviewed in Australia on March 23, 2023
Shipping and delivery from Douk Audio very fast and painless.I'm using this to drive bass shakers on a Sim Rig. I was uncertain about the connector as this isn't (or doesn't seem to be; the feature descriptions are ambiguous) a USB sound card, but it installed easily and perfectly as a Bluetooth audio device which turns out to be much easier than yet another USB connection on the rig.The build quality is really impressive at the price and it works well and feels very robust.I was using the other well-known and popular brand cheap little USB 2x50W solution - had no problems for a year then mine failed and its replacement failed for no clear reason. This solved the problem and has given me the extra channels to add a couple more shakers when budget allows.
Coolin
Reviewed in Canada on March 12, 2023
Good:- pushes enough power for 4x ceiling speakers- Bluetooth range very good- smallBad:- no remote- buzzing adapter we had to replace- speaker connectors way too small and a pain for smaller gauge wire (aka 12 gauge wire)Would be nice if it had am/fm built inThe unit itself is fine for what we wanted it for. It’s powering four ceiling speakers meant for ambient music. The ceiling speakers are older generation mono price but with this unit they sound amazing when powered.The adapter buzzes loudly, to a point where we could hear it 15’ away even with music playing at a low-ish volume.We kept it unplugged till replaced concerned about fire2 stars because of adapter buzzing, lack of remote, annoyingly small speaker connector ports.
brett
Reviewed in Australia on October 26, 2022
Very happy with this. Works as described and feels quality.
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