🔊 TDA7492 2x50W D Class High Power Digital Amplifier Board with Radiator 10-26V by HiLetgo Review

Using a 12V DC 2.4A power supply into a 4 ohm 2-way balanced speaker load will go all the way up without interruptions . Problem is the sound quality isn't great and I'm an anal sound snob compared to what I've heard in "cheap chip board amp" arena kit builds.

Excellent amplifier for the price. Some Polk bookshelf speakers are louder than I'd like with no noticeable distortion and don't draw much power. 30mA at idle and only 0.5A at full power. My ADS car amp didn't sound any better, drawing 1.2A in standby and was able to limit the current to 5A when turned on. The input wires are annoyingly tiny and difficult to work with.

I have used several Bluetooth boards from Sanwu with this chip from ST Microelectronics. Everything required some serious EQ (think Bose 901) to sound presentable. I bought this board to try in the garage as shown in the attached photos. I couldn't get it fast enough. Penetrating, hissing, compressed (@ 19v 4.5A) and 2-dimensional. I'm sticking with my warm friendly TPA3116D2, although I bought this product hoping for a little more SPL.

I was able to drive some 6.5" Scosche auto door speakers to the point where I could safely blow them up. They're rated for the dubious 50W RMS power. I could also TWO Drive this 6.5" Scosche speaker in series (8 ohms) from a high volume channel. I also tried connecting a 12" RMS 12" woofer to this amp but it didn't work. to be expected. The board didn't get warm at all. I powered it from a modified ATX computer power supply. I would say that this amplifier board is worth the money!

One star off because the first one I got was physically damaged (maybe because it was shipped in the wrong packaging). So far so good with the replacement. The real issue with these little amps is their durability, so I can't be sure that after a short time they won't last long. Tried using a 12 volt computer power supply I had and 8 ohm speakers. The sound is ok. Good enough for background music. Without blaming the amp, unfortunately 12 volts is not enough for 8 ohm speakers. I'll probably…

Deducted a star because the first one I received was physically damaged (perhaps because it was in the was delivered in the wrong packaging) . So far so good with the replacement. The real issue with these little amps is durability, so I really can't be sure they will only last a short time. I tried this with a 12 volt computer power supply and 8 ohm speakers. The sound is ok. Good enough for background music. Without blaming the amp, unfortunately 12 volts is not enough for 8 ohm speakers…

Class D gain keeps getting better. First Tripath TA2020 appeared, then TPA3116 overtook them, and now TDA7492 chips are on top. This amplifier board is very well designed and as small as it gets. Ideal for all types of applications. I hooked it up to a small tube preamp and it sounds amazing. I'm building my own amp to replace my old Harman Kardon receiver. Two cigar boxes, one for the preamp, one for this amp and all inputs and input switches. The sound is great, the power consumption is so…

Unlike some other audio amplifiers I've tested, this one doesn't have a volume control. It runs at full volume from the start and you have to control the volume with the input. This causes some loud noise when the amp is on when you plug in the input. or if you touch an unconnected input. I used the computer's audio input to test it. I found that I had to start with the computer at minimum volume and could only turn it up to about a quarter of full volume before the output became uncomfortably…