It's nothing but a powered portable speaker, and not much thought into it as well, seeing as how the tweeters are stacked in the middle -- sort of silly since there would be no separation. And then the the speaker selection..... 5.25" coaxials are already sort of bass shy. Add TWO more 2" tweeters and it'll become more of a squawk box than a boombox. Also, he says it's got internal crossovers that deliver the right sound to each speaker. Except he didn't show the insides but my suspicion and guess is that he even got that wrong. Since he probably installed nothing more than a cap for the tweeters. But then the main speakers are coaxials, so what, a different cap for each tweet? Finally, when he laminated the veneer, the corner isn't even glued down flat (check the bottom front corners).
So, it's not for me. But is it louder than any other boombox? Maybe. 15wpc into mids/tweets get really loud. But it's not going to sound as good as it could be and will have poor stereo separation is all I'm saying.