INSMA TDA7492P 2 x 50 Watt Dual Channel Amplifier Wireless Digital Bluetooth 4. 0 Audio Receiver Amplifier Board 50W + 50W

The media could not be loaded.  Its great amplifier for such a price. I never expected this much power in this small size. You can see its really small compared to even parker pen i have and other cheap amplifier i had before. My speakers are going crazy with this amp. I am using one 30 watts and one 10 watts speaker in each channel parallely so total 40 watts each channel. I also made box to make it portable and soon will make another specially for speakers i have to improve acoustics of speakers if you know speaker box or enclosure is much more important than speakers itself. I am using 3s 18650 li-ion battery which i made myself with it and it is working so LOUD. Literally people at your home will yell at you to lower volume. The bass is exceptionally great and all vocals are clear too. An amp this great at a price this budget friendly is so great choice. I definitely recommend to buy this for people searching great amps for making boomboxes.

nice product at this price

It's was good but little sad

Very worst product, after 30days it's stop working, if you increase full volume, it's automatically went power off. Now I have dead product only. Think before buy it!

Stops working for no reason, doesn't give any sound. After some months it started working again. Stopped working last month. Unreliable product.

I used it since last 3 year , I have no problem with this , sound quality is good , but when we reached maximum sound output it's automatically shutoff and on ... Allover good product

I bought a pair of these to power two bluetooth speakers I built as gifts. I followed the manufacturer's recommendation for a power supply (12v, 3amp) and hooked them up to 2" 25w speakers ( DROK Micro 12W Stereo Audio Speaker 2" inch 4 Ohm Full Range Speaker 2.0/2.1 Hifi DIY Loudspeaker Woofer Active Light Speaker Indoor External Usage Auto Car Motor Motorcycle )Overall, I was very happy with the end results. The sound quality was better than average. (I suspect better sound could be had if I'd spent more time on the acoustics of the enclosure.) Bluetooth connects easily, though the range from inside the wooden box is a pretty short--probably 20 feet or less. I found the instructions a little on the skimpy side but was able to figure out the connections from the labels printed on the board.A few minor quibbles:The speaker wire posts are a little flimsy. Screwing them down tight made me think I might snap the entire part off the board. Separate wires and plugs would have been appreciated for this connection.For my project, I would've liked to mount the board so that the power cord could be inserted from outside the enclosure. But because it sits adjacent to the speaker connections, I had to permanently mount the power cord. It would be nice if these two items were mounted on different parts of the board.For $16 (at the time of this writing), the board is a steal: plenty of volume, clean sound and easy installation. DROK Micro 12W Stereo Audio Speaker 2" inch 4 Ohm Full Range Speaker 2.0/2.1 Hifi DIY Loudspeaker Woofer Active Light Speaker Indoor External Usage Auto Car Motor Motorcycle

Funciona al 100 solo que no se si es mi alimentador o la tda 7492p pero suena un poco de ruido cuando le subes todo el volumen

Esperaba más de este producto Ami no me funciono muy bien pero está muy bien echo y calidad buena solo que Ami noe gusto al órale de probarlo con unas bocinas se quedó corto

Great Bluetooth board for the price. I had no issues setting it up or using it, very easy. The only cons are the volume settings. First the power on beep and connection beep are crazy loud. Also if I have the ringer on my phone turned on and I get a notification, watch out - it is so loud it scares the bigeebies out of me. The other volume issue is I wish the sound of the audio out could be turned down a little more, I am using it for light background music and it's just a tad loud for me, even with the dip switches set to the lowest setting. Other than that this board functions and works like I expected.

These are pretty good little boards overall. I'm making some bluetooth speakers for friends and family. A newbie to electronics but a long-time woodworker (45 years), it seemed like a fun change in direction and has been. I"ve long been sort of an audiophile (champagne taste on a beer budget) and have a nice Klipsch home system and like to think I know good audio when I hear it (and bluetooth speakers don't begin to approach that).So I bought 1 of these, liked it and then 4 more. I use these with a Talentcell 3000 mAh battery that can charge while providing power, and wired a rocker switch into the back as well as a 2.1 panel jack for charging.First the negatives from a person who's never made a bluetooth speaker before :-)1) The documentation is just barely adequate but if you take a moment to really read it you'll find what you need. Also, there are resources all over the web.2) There is noticeable hiss until you connect to a bluetooth source, but then it disappears. I have not yet soldered a wire to the antenna as some have suggested because my soldering skills aren't there yet.3) It can be very obstinate about clinging to a device once it is paired. I paired it to a device and then, on trying to pair it to another device could not do so. This has happened with only one of the 5 boards but still that is a 20% failure rate which is the primary reason for the 4 stars.The Positives:1) Tiny board is easy to locate in a small space2) Although I don't have testing equipment, it seems to provide plenty of power to drive a range of full-range speakers with plenty of distortion free volume.3) The board is well laid out. You can easily access the speaker connections, power input and not have a bunch of clutter when trying to put it all together. The screw terminals provide good tension on the speaker wires.4) It comes with "feet" or standoffs that isolate it electrically. In my case, it's mounted to wood so I epoxy them to the case but you get the idea. Nothing extra to purchase. Thumbs up.5) No issues with bluetooth range so far. It seems to work to the stated range and does so consistently.6) It's twelve bucks. I paid more than that for a salad at Chili's yesterday. Seriously.