DAMGOO Bluetooth Amplifier Board,50w+50w 2 Channel Audio Amplifier Board Suitable for retrofit Speakers Bluetooth Speakers,Easy Installation and Password Free Connect to Phone with Protective Shell

Perfect awesome sound for its size. Worked great in R.C. car

Used this on a diy sound bar.Two 3in speakers. Loud enough to hear it good on a hill climb in a 2012 RZR S 800.not much bass though... Could it be the 3 in speakers? Prob should get some hearing protection lol.Edit: I just wanted to say that I'm using a step up power supply that I bought to power a Nakamichi NK1B at ~18VDC. I was modifying it to use in the RZR. Upon re assembly one of the chips on the NK1B board got crushed. This board didn't fit in the sound bar. I mounted it under the seat in a watertight box with the power supply board. This board sounds better than the original. Included some pics of the sound bar to see what it's driving.

In the second picture is supposedly 160 W per channel noisy, and with the 24 V power supply the fan spins even faster no regulation using it as a subwoofer amp third third amp is dead one channel went out then another with the small amps once you some high for frequency chatter and you let it cool off. It’ll work for a little while until the chip gets hot even with the fan things, a piece of junk. I bought one from another vendor without the fan and it smoked the second time I used it made a modification for the buttons. It’s a little crude looking was thinking about getting another one and refine the buttons.

This little board is bad ask.lol. Worth every penny ..the power requirements are versatile...5-24vdc. I have powered it up all day with a 20 cordless tool battery. It has yet to use full charge in an 8 hour day.It runs two 8" And two 3" speakers in a four foot custom box and the sound is incredible..I was very surprised at the clarity and range ..excellent bass excellent mids... excellent highs. I have intentions of setting up another board with a amp board and crossovers to drive a couple 12" and horns for an old fender system the Bluetooth has a decent range at about 30' solid and connects easily. I promise you won't be disappointed with this board. Easy to install in any application..the stand alone power is more than adequate for most applications ..I often turnine down as it's loud enough to disturb the neighbors..

Connectivity to speakers and Bluetooth was easy and works with no problems. Connected to a couple of ceiling speakers and sounds fine to me. I'm currently listening to a thunderstorm which had my cat a little confused.I'm using a 12v dc power supply and it's plenty loud enough.

I am using this with a DeWalt 20v battery and an 8" subwoofer car audio speaker box. The battery adapter and car audio box were also Amazon purchases. This thing is loud enough to annoy the neighbors if I'm not careful. Sound is surprisingly clear for a Bluetooth speaker.

My wife wanted speakers around the pool so that the soundbar volume did not have to be so loud in order to hear the music at the back of the pool. So I bought a set of wired outdoor speakers https://www.amazon.com/gp/product/B002C775W0/ref=ppx_yo_dt_b_asin_title_o04_s01?ie=UTF8&psc=1, un-screwed the bottom and used it as a watertight container for this module. I then bought a AC to DC converter: https://www.amazon.com/gp/product/B08B3T9DX4/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1 and wired the AC power in from my landscape lights. I then inserted all of the project boards into the speaker, re-assembled and re-silicone the bottom. Then for my TV I bought https://www.amazon.com/gp/product/B0793ZT129/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 to hook to the TV 3.5mm speaker output. The transmitter paired to the speakers automatically and my BT soundbar and now I have speakers both under my pavilion from the TV, and then at the back of the pool so the overall sound level can be equal if your sitting under the pavilion or relaxing in the deep end of the pool. All controllable by simply turning on my landscape lights with Alexa :)

Update 9/12/2022The original unit purchased 8/5/2020 still works great. No problems at all. It works so well I bought a second unit this summer for our summer place. It also works great.Original review:It does everything it says. The sound is crystal clear and way loud enough to hear outside on our deck with two Yamaha 8 Ohm speakers on a busy street. I connect to the unit via blue tooth from my phone. So far, it's connected each time since the initial pairing without a problem. I do power the unit down when not in use. When powered up, it beeps first to says it's up, then a second time when it makes the blue tooth connection. I have not attempted to push the sound up as high as it can go as I'm sure my neighbors would not appreciate it. :) I have recommended this to others. I can't say anything about quality or longevity as I've only had it installed for a few weeks now.