This will lie horizontally on your ATV and it comes with mounting hardware for you to secure it to the back.
It’s a decent amount of power, maxing out at 450 watts and it’ll run off of your 12V battery. If you really want to crank the volume there’s a bigger version with 700 watt speakers. Use the Aux input for your phone or mp3 player or use the Bluetooth option and get some streaming going. It’s another rain resistant option built with rough use in mind.
Did we mention it’s affordable? This is one of the cheapest options available while not actually being cheap in quality. A great value for its price. It’s kind of bulky which might be a turn off to some, and if that’s the deciding factor there are lots of tiny speaker options. You won’t get as much power out of those though, and the acoustics in this unit is pretty good because of the housing.
Even though it does look a bit bulky, that doesn’t mean it’s heavy. The whole thing is about 13 lbs so it’s not going to be noticeable.