Good points BeverlyJean, but I can't crown a champ based just on affordability or features, I would have to look at every aspect, quality, how many models, features , flash, sound quality, ect.
There is not a portable production model that built yet that has more SPL than a JVC RV-B90, but it isnt a radio that was produced to the classic visual standards of vintage so no major crown points for that, but Panasonic has more models than anyone with features and high price tags that prevented the general public from purchasing for outdoor blasting, so now what points scale can I use ? I am pretty sure, and I hate to say it, that if you took the entire JVC line vs the entire Panasonic line, that Panasonic would have more dominating models. If anyone has a database and can confirm or deny that claim, I would love to know which company had the most portable stereo models and such. Would be interesting and I might actually be wrong. For the crown of overall domination in the realm of boomboxes, entire product lines from 1st model to last model and all models in between must be considered. Panasonic may have the edge. Could someone with a database chime in ?
There is not a portable production model that built yet that has more SPL than a JVC RV-B90, but it isnt a radio that was produced to the classic visual standards of vintage so no major crown points for that, but Panasonic has more models than anyone with features and high price tags that prevented the general public from purchasing for outdoor blasting, so now what points scale can I use ? I am pretty sure, and I hate to say it, that if you took the entire JVC line vs the entire Panasonic line, that Panasonic would have more dominating models. If anyone has a database and can confirm or deny that claim, I would love to know which company had the most portable stereo models and such. Would be interesting and I might actually be wrong. For the crown of overall domination in the realm of boomboxes, entire product lines from 1st model to last model and all models in between must be considered. Panasonic may have the edge. Could someone with a database chime in ?
or are we talking about who is king of industry for being around and still manufacturing these wonderful pieces of history we collect 
if this is the case then it's between JVC and Lasonic since they are really the only ones manufacturing the real boomboxes and kabooms for over 2 decades 
Panasonic = high quality for all their audio products. Are they a Nakamichi, no of course not, but they didn't play in the "niche" market. They played in the mass market, but their products were always the best quality of the mass market. For example, if you need an electric shaver, Panasonic is the best deal. If you buy one of the European shavers, you have to pay twice as much to get the same features, and they aren't as reliable. And if you want a rice cooker, everyone says get a Zojirushi, but they don't know what they're talking about. You can get a Panasonic for half the price, with the same number of features, and it will last just as long if not longer. 
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