Review on 🚗 4 Channel Car Amplifier – BOSS Audio Systems R1004 Riot Series, 400 Watts, Full Range, Class A/B, 2 Ohm Stable, IC (Integrated Circuit) – Ideal for Car Speakers and Stereos by Devon Dober

Do yourself a favor and avoid the temptation to buy a good amp at a low price. There are a lot of reviews here saying it's good and a lot of people saying it's bad, so I decided to give it a try. I might as well put in the box the thing came in because it would probably sound better. Any increase in the output of your speakers is just distortion. Yes, it will be a little louder, but it will sound like crap. This item is non-refundable, so once you receive it you will be stuck with a useless black box. Spend your money on something better and avoid!