I've seen that kind of JVC a few times, and each time I've wanted to buy it, rotate the speakers sideways to make the speaker openings pointing downwards like exhaust nozzles, and with the aid of a bit of dremel-and-glue DIY, convert it into a robot's rocket-thruster body/backpack thing for a (Halloween? Comi-con?) costume. Never bothered to actually do so, though. (Life has a few higher priorities...) They really do look like some kind of sci-fi rocketeer's prop!
JVC did make a few decent things, though, such as 89Grand's turntable example!
Actually, nearly all brands made at least SOMETHING good at some point over the years, with the exception of a couple brands (Yorxx, Crosley) that really specialized only in the very low-end market segment. Sony, Akai, Technics mostly made mediocre or mid-fi stuff, but their rare attempts at really top stuff were excellent. A lot of the really good stuff was confined to the Japanese domestic market, though, and only sold in limited quantities. If it weren't for a small handful of models like the 301, Garrard would be seen as a "junk" brand --they did make some truly horrible "junk" turntables in later years-- but those models are truly outstanding, so the brand is respected.
Several times I've been asked what I have in my system, and as soon as I mentioned Yamaha, people have responded with something like, "You should get better. Yamaha never made any really good stuff!" The Yamaha I refer to includes a GT-2000 turntable, NS-1000M speakers, and a 101M amp. If that ain't darned good stuff, I'll eat it all for dinner! But it isn't that widely known outside of hard-core audio freaks, so the brand isn't thought of as having made good audio stuff.
It's hard to change the consumers' perceptions of what a brand is, once the brand has a market image... but most brands have a few models that don't fit the image. A "cheap" brand my try to upgrade peoples' perceptions of its brand quality by producing some higher-end stuff. It may hope to shift it's image to something more expensive, allowing it to sell all its line for a little higher price. OR a high-end brand may try to "cash in" on it's upscale image, by selling "more affordable" stuff with it's prestigious name attached. Both are difficult things to do. Producing too much lower-end stuff can weaken the high-end status (Pierre Cardin made this mistake). This has happened to a few once-respected audio brands that were bought out by larger conglomerates (usually Harmon...), such as Marantz, which had to work hard later on to claw back a measure of market respect, or Infinity, which has prospered in the mass-market/audio niches, but never again at the high end. The most successful companies at these "market extension" strategies have tended to create an entirely new brand for the new market segment (Toyota/Lexus, for example). Some audio companies have also done this (e.g., Teac/Esoteric).