🔊 Huazhu DC12V-24V 2.1 Channel TPA3116 Subwoofer Amplifier Board High Power Bluetooth Audio Amplifier Board 50W+50W+100W (Bluetooth Amp) Review

This product is amazing! The sound quality is perfect and loud. Easy connection. The only problem I have is a loud crackling sound when turning it on.

This BT 5.0, 2.1 amplifier offers excellent value for money. There are some minor on/off issues (a power button would be welcome), but the overall sound quality and BT 5.0 connectivity make it a little powerhouse for the price. Subwoofer is nice.

This is the second of these amps I have bought and they are very good. However, the first one I bought about a year ago used USB after ports were added and was able to play flash drives. This new one, identical to the previous one, has the same connectors for adding USB, but it doesn't seem to work. Anyone got the USB working this time? It played mp3, flac and other files perfectly.

Please see my video for details. There may be strange RF interference from Bluetooth transmission. I've found that connecting a short wire to the heatsink somehow eliminates the interference. So the problem is solved. For a sub $30 Class D amp that puts out 50 watts per channel and another 100 watts to the subwoofer, with finely tuned crossovers and tone, this is a solid amp. My second to use in these custom speaker builds. Excellent quality and very clean sound of food.

All in all a good little amp. I have two 40w 4 inch woofers connected to 2 ohms on the bass channel. Also two 2" speakers with 3/4" tweeters for high frequencies. I don't need a crossover, the amp has a built in crossover. It performs well for its size if you have a large PSU. I use a 24v 10 amp power supply that works fine. You could probably step it up to 24V 15A to get full power output. Sounds good, but if you don't have a large enough power supply, you may end up with distortion.

Be careful what you think is the same. Last year I bought a similar amplifier board from another vendor for a DIY project. After a year or so I figured I'd buy another pair. The vendor I got it from didn't have anything listed but I found the same thing but updated to 5.0-bt. I hooked everything up on my dyno as soon as I turned on the loud pops and crackles from the speakers. Old amplifier boards never did this with the same power supply. Also when connecting the speaker wires to the new…

Excellent amplifier. This is my 4th amp of this design and 2nd from this seller. There are several similar ones from different sellers, all the same. This one doesn't have a white USB cable connector, although it does appear in the picture. It seems to be common to all sellers of this amp. I usually just solder the connector and that's it. The second board I ordered from this seller had the USB input holes soldered. I had to use some solder to remove the solder and was able to add the connector