Those that know are aware that this is the arguably most serious of all the JVC Kabooms, with (oh-joy) properly adjustable treble, 52W bi-amped output & all sorts of drum-pad silliness. At my wife's 50th birthday party, my one of these ran at full power for hour after hour, absolutely hammering out tunes with plenty of bass, distortion-free, at proper party volume levels. No Bluetooth speaker I've heard would've got close. This is a 20-odd-year-old machine & it did not miss a beat - now that's reliability. Cannot recommend it highly enough...
In all of my travels, I've never seen a used one for sale, I'm guessing that people like them and hold on to them.
I have two, one from a friend who used it for work & the CD player had gone south & another I scored fully working from eBay in 2012...