Class AB Amplifier, DROK 2.1 Channel 80W+80W Stereo and120W Pure Bass 9-18V 4Ω Audio Amplifier Board

I designed this enclosure to reflect the old model T Ford “hot-rods”.The heat sink fins are left exposed to maximize cooling for the power transistors.The circuit is well designed and the board is robust. The sound is clean and warm —characteristic of its class of amplifiers. I am powering it with Ryobi 18 volt lithium batteries, allowing me to use it for portable applications and during power failures at home.I am making it the center of a high-fidelity “boom-box” using a bluetooth receiver for both music and movie sound in conjunction with a tablet computer, with speakers that are detachable — when such separation is desired for improved spatial sonic imaging. I like this amplifier a lot, and am very pleased with my purchase.

This is a really nice amplifier board, and I've tried a few. This review specifically pertains to the model being listed here, "Class AB Amplifier, DROK 2.1 Channel 80W+80W Stereo and120W Pure Bass 9-18V 4Ω Audio Amplifier Board". Some of the older reviews appear to be talking about a totally different product. This one does not have bluetooth.Honestly the sound quality from this thing is outstanding, it's clean and loud and music sounds fantastic. K have it hooked up to an ATX power supply that I use for my car audio equipment at home, pushing 12v through a fused distribution block. The input is a 3.5mm aux connection to my Galaxy S22 USB-C out, converted through an in-line DAC.Upon initial turn-on, a nice green LED lit up,and there is no noise whatsoever coming out of my 6.5 inch coax speakers. No buzz,no fuzz, no hiss, and no piss. A beautiful thing go experience if you've been let down by some of these mini amplifier boards previously like i have.I also hooked up the subwoofer output to my 10 inch sealed Infinity REF sub at 2 ohms. The balance is unbelievable! There's only one volume control know, so there is no way to modulate the sub or speakers independently, they're just mixed on the board, but the mix is super nice and balanced.Overall I'm super happy with this amp. It aounds better than other amps that cost multiples of what this one cost me ($23). I recommend it without reservation, just make sure you know what you're doing and have the 12v equipment needed for running this in your setup.Kinda wish it had bluetooth but I knew it wouldn't going into it so that's not an actual knock on the product. Just a wish.Good luck and enjoy. This thing puts out loud clean clear audio signals for your speakers!!

After using it for about 3 months I can say that the Class AB Amplifier by DROK is ok. Here is a quick breakdown.Pros:- It looks good- it's easy to use and install- sounds about right for the priceCons:- It gets very hot- There are no mounts for it- The Subwoofer is not great when the volume is lowPersonally, the only real downs side to the AB amp is how hot it gets. I wish it came with a fan. Because the heatsink does get hot enough to warp soft plastics. the solution to this was to install a fan. I would advise getting a fan for anyone that is using it often.

This is a good product, but the subwoofer, while sounding good is not controllable. I wound up puttin a 4 inch sub on the output just to give it a load and some mid bass, and installind a seperate mono sub amp which is controllable..much better. The 4 inch might be rated at 25 or so rms watts, and it never bottoms out at 3/4 volume. Weak bass. I like my beats fast and my bass down low!

I've got this thing running some bookshelf speakers for my desk setup. I've never driven it super hard on account of my not being deaf, but I've never noticed any distortion or thermal issues.

Sounds decent, has good output but will hum quite a bit if the volume is at max with nothing playing. I gave four stars because that may be a wiring issue on my part, but otherwise it seems decently made, not top of the line obviously but it does exactly as expected and is actually quite a little contender if you add a cooling fan, stays nice and cold that way but without one it gets a bit hot at 75% volume on 4ohm speakers.

1-There was a popping sound when the power was turned off,,2-The amplifier's heatsink layout is also unreasonable.so I returned it.

I ordered one of these a while back and it worked out great so then I needed another one so I went back into my past orders and ordered a 2nd one since I knew the dimensions from the first one and was confused when u received completely different looking Amp so I went back and looked and sure enough it was a completely different product so at some point in me ordering it and it shipping out they changed the listing to the new product so I have to go back and change all my designs to fit a much bigger Amp

So good I got two of them for my amplification project