HiLetgo 2pcs TPA3116 100W Audio Amplifier Board DC 12V 24V TPA3116DA Mono Channel Digital Audio Amplifier Board High Power AMP Module

One of the two works really well. The second item works well until I push tens of watts through it then it shuts off until I bring the power back down. I don't feel heat on the sink so I am wondering if there is an overvoltage setting on it. The other channel gets the same power and is not affected. I would give five stars if supplier contacts me and swaps the one board with a fully functional one. The price for two is really good. Youtube testers got 98W out of this. I did not confirm if that was peak or RMS power. I agree with the other positive reviewers on this product. I also agree with the unfortunate incident of the person who got the probability of two not working. You are betting on the distribution of getting one that works (or both). I think you will have a good chance. I am driving 6 ohm, 50 Watt RMS, Dayton speakers with these amplifiers. One amplifier per speaker, so in mono configuration. The amplifiers are driving those speakers just fine. My source of sound is a record player from amazon. I don't readily have the make and model, but it has a preamplifier inside and I am tapping off the RCA Left channel and right channel for each audio amplifier we are discussing. I am runnint 24VDC into these amplifiers. UPDATE: I had a potentiometer for volume between my pre-amplifier and this amplifier that was causing reflection and causing one channel to over-voltage (I think) and shut off. I just turned the resistance all the way down and controlled volume through the pre-amp. Now the channel pumps power no problem. No cut-out

Worked as advertized for me. I bought two and I've been using one successfully for several months. Note that these are two phase amplifiers meaning that the two output wires are driven with opposite polarity signals thus doubling the voltage across the speaker and quadrupling the power. "Amazon customer" that showed screenshots of their scope measuring the output power did not take this into account. The 45 Watts they got was incorrect, they actually were getting 180 W !! I tested using a 24V supply and found that into 8 ohms I was able to get a nice sinewave at 40 Vp-p before clipping. That means 28 Vrms (for two phase) and thus 100W of power. I did not test for very long so I don't know how long it can maintain 100 W without thermal issues but I mainly want the headroom for clean attacks in percussive sound and it works well for that.

I was looking for a pedalboard power amp. And they aren't too cheap for not a lot of power. Fortunately I'm always buying these component amps and stuff for projects so these popped into my feed. I figured for the price I will find something to use them for if they don't work out. They work awesome, with a 8 amp 24v power supply this gets plenty loud driving a couple 10 and 15 inch speakers. I just use a small mixing board as vol control/fx loop. Your milage my vary but for me I'm happy.

It's super cheap. Getting any use out of an amplifier at this level is just a pleasant surprise. That said, the low sound quality definitely makes me question the listed specs. The on-board potentiometer was an odd little thing I didn't expect, but is at least functional. The wobbly screw terminals are a little concerning, but the heat sync seems to be staying put in the two boards I bought. Currently just powering a small, temporary under-desk sub. Originally planned to use for one way of a dsp soundbar. I may try out its high frequency performance at some point, but for now I'm happy to have a cheap mono board laying around to test different systems.

one of them was damaged. it appears one of the large filter caps was busted from the circuit board. If they were to package these in a safer manner they would have less issues. I have used these amps before and they work pretty good when they DO work.

These do exactly what they say. I've used them multiple times. I have two different DSP driven projects that use six in each. Twelve total.

It's kinda an iffy product. Buy at your own risk, but be aware of its pros and cons. The first thing I would state is you get two of these, so it's a bargain bin item at the price. If you can get it to work for your application it may be a good buy. If you mess one up.. you got a second to work with. Quality.. it's iffy as well. You get a well-made board that is laid out pretty straightforwardly. NOW, does it work? It's yes and no for me. I was able to get it working in my project with a 24v power supply at 3amps. The power is clean, the output is very good at its power level. However, input was a pain in the behind because you only have blocks marked positive and negative, and well when I tested a left & right audio cable I kept getting mixed results with my input where sometimes the left or sometimes the right would cut out. Also, I had to keep maxing out the small gain pot to get good volume.. and sometimes it crackled when adjusting.

After reading the reviews I wasn't expecting a stellar amplifier board, especially with the possibility of a fake chip. However, my use case doesn't make a lot of demands: I'm amplifying the output of an MP3 board and sending it to a 4 Ohm 100W outdoor speaker, and using a 12V supply. In theory I could only be getting around 30W RMS of output power give or take, but that's more than I need. This is for a halloween prop and I need it to be loud but to not wake the neighbors. I cranked it up far beyond what my ears found comfortable and I didn't hear it distort, so that means I'm happy. So my 5 start review is specific to my use case. If you need high output with superior sound quality, I can't comment on that. But I'm definitely going to spook some people this Halloween.

Surprising very good performance Using 18 volts to bench test.

Compact, well made, works perfectly