4 Channel Digital Amplifier Board, 4x50W Hi-Fi Stereo Sound with Smart Cooling for Home Audio Car Speakers DIY Sound Systems

I bought this to power 2 4.5" and 2 6.5" alpines but after connecting I smelled burning electrical. After investigation I found it blew one of my alpine 6.5" 2 way speakers so I can't use this piece of junk. And I really liked those alpines too smh. It must have a shorted output or something to send full voltage and cause this to happen.

Do not buy will not work read the reviews went out on a limb and said eh why not hoped for the best got the worst

No es un buen producto

horrible product used it maybe 2 times a week for 3 hours at a time and never at full volume with a 12v adapter. It broke it literally stopped producing sound! lights up fan spins but no sound! horrible

Played for about 1 minute then stopped playing.... It's on but no sound at all... 😡😡😡

Mine came a bit squished much like the other reviewer, probably doesn't help that it was just loose in a bag. I looked the board over, nothing to bad. some bent capacitors, an inductor was nearly pulled off. So i went ahead and tried to straighten it up since my heat sink was all whammied like the other reviewers... and his worked just got hot... anyway POOOF goes the main chip area as the magic whitish grey smoke escaped its entrapment....Hoping for this device to work, so i ordered a new one to replace that one. I will update this if that one works for even a few seconds... If this is all thats on here in a year then the second was garbage and i just didn't bother to update because... why would i really... if its trash....

It turns on.but has no sound or instructions or any videos.