Amplifier car Audio Monoblock Class D Compact Subwoofer Amplifier, 2/4 Ohm Stable, Low/High Level Inputs, Low Pass Crossover, Mosfet Power Supply

I have a mid-size crossover currently, had no sub from the factory. I'm a high end snob, I'm very much so into the clarity and accuracy of audio reproduction in the car-audio segment of things. I built a 1 1/4 cuft. box, slapped a nice woofer I had laying around into it, I set the gain and crossover with my D'Amore Engineering DD-1 and CC-1. I'm pushing this thing into a 2 ohm load, and let me tell you. With a good box, good woofer, good settings, and a good power supply, this thing absolutely slams. For reference, I had a similar setup with a Rockford Fosgate P300X1, which on a dyno makes around 300W burst into 2 ohms, this does the same for... a sixth the price? Now, that's all fine and dandy, but how's the audio quality? It's great, it's really great. I can't believe how clean the output is for how cheap this thing is. There's super low noise floor (noise that escapes the class D filtering and makes it to the output). It's absolutely shocking for the price, I really can't describe it any other way.I would appreciate the company producing this product, if they'd take this feedback, as these simple things would make this amplifier significantly better.1. Power inputs should be larger, 8 AWG. 10AWG basically doesn't exist...2. Remove the high pass crossover, make it only have a low pass.3. Increase the jack size of the bass knob. The jack on the amplifier is smaller than on the bass knob.4. Increase internal fuse size, and change ratings to include 1 ohm testing. This amplifier works fine at 1 ohm, gives me and others no problems at 1 ohm, even with 35A fuse. It would be nice if it was equipped for it from the factory, and it meets its rated power at 1 ohm!Extra details too;The company that makes this amp, ALSO makes "AUDIOZERONE" and they have the "PLINIUS" brand trademarked as well as the other, in the US. So these will likely be their brands going forward. They are a China based company, which in this case is a good thing, as they are a manufacturing company selling directly to the consumer, this means that they are able to sell at a significantly lower price than everyone else.From an engineering perspective;Overall looks good. There are a plethora of low-ESR capacitors inside the amplifier. They're of a cheaper brand, but this is alright in this case as it looks like for reliability purposes, they put way, way more than necessary. These also help reduce input and output noise.Notably though, the caps are rated to 50V, which means the power rail is likely running around 35-45V, which is very, very nice for an amp this small, as it helps it make a lot more power in a compact size. The power components are made by TSD semiconductor, a Beijing based company, very reputable for their quality too, which is a good indicator components were picked with the best ones where they matter.The output frequency filter is also of high quality, made by CODACA, it is a CPCF2919 model, high current type. Very, very good quality for the price, CODACA components are very good, usually not a known name due to them mostly being used for OEM applications.Thermals; Semiconductors are mounted to a common rail with thermal paste, this rail is then mounted to the case, lots of metal between the semiconductors and the atmosphere allows for more heat to be transferred directly into solid metal, this works well for high power applications. This is a low power, high efficiency application, the amplifier will literally never overheat unless you seal it in a thermally isolated box or an oven, or whatever equivalent you find out how to do in a car. What I'm trying to say is; you're going to have to really mess up or try to overheat this thing, very thermally efficient. This also bodes well for longevity, as it means all components will run cooler, and electrolytic capacitors love running cooler.Overall, very well built, very good sound quality, shocking price. I hope to see more from this company at this price point, as it will severely disrupt the market and make every manufacturer become more competitive.

I kinda want to give it a bad review so others won’t buy it. I’ve purchased 5 to use in extreme portable Bluetooth speakers. I literally can’t say enough good things about it. Run 4, 4 ohm speaker on it and you won’t be disappointed. I ran 2 Skar midrange 4 ohm 8” and 2 Skar super tweeters also both 4 ohm for a total of 1 ohm load. AMAZING! Oh yeah and I ran it that way for about 45 minutes till my ears couldn’t handle it anymore. No overheating or turning off.

Great size for power. for $50 and can d0 300wats @2 ohms not bad. Saw a You Tuber (Wilson Audio Labs) test it at 1 ohm and it hit its 500w and didn't over heat. They said it may be mislabeled for the ohm load.

My amp was going fine until last night when it he bass all of a sudden the bass started fading away. This mini amp is a small power house until then. Turned the gain down and still the same thing. Checked all of my wires and everything seems fine.

Sadly the amp didn't work. It was for my work truck I am putting together so I couldn't test before return time. The speaker connectors don't work.

will fit almost anywhere. good build quality. even though it doesn't meet it's power ratings still provides a good amount of power in a very small package at the price of $46. included remote level control is nice.UPDATE: reconfigured the single 10" 2 ohm DVC subwoofer this amp pushes from a series 4 ohm load to a 1 ohm parallel load, and this little budget gem really shines. no shutdowns and only mildly warm to the touch. if you want to take a chance and see what $46 can do go ahead and give it a try......at your own risk of course. but in this case it's delivering around 500 good sounding watts into a single 10" load at 1 ohm. will do a future update if anything changeIt truly will run 1 ohm just fine with no issues for me at all, and make plenty of clean power doing it for it's size. they must rate it to only 2 ohms so as not to step on the toes of other brands who have them build virtually the same amp selling for higher cost. you can pretty much take it's power ratings and shift them from 4 and 2 ohms, to 2 and 1 ohms and that is the real power you will be getting at 2 and 1 ohm loads.

I wasn't completely sure about this little amp even after reading all the reviews. It seemed it was either hit or miss.Once I finished the installation, I also thought there was somthing wrong with the amp like most negative comments.But after tinkering it a little bit, I quickly realized that I'm had to change the settings to get the right sound. - I was all set and ready to go after thatI'm so glad that I bought it because it delivered exactly what I needed (i.e., addition to the stock audio system).I hope this gem will prove itself in terms of quality with longevity. :)

Works pretty good, though definitely not the 400w at 2 ohm claimed. under powered for the 2 ohm 350w rms sub I ran it on. Did not work at all on built in high level input, extremely quiet using external convertor. ok volume with low level input. Amp gets quite hot but did not have any reliability issues in the 2 weeks it was installed before returning.