The history and typical features of the Super Jumbo guitars are now available at:http://riverboatmusic.com/guitar/jumbo/jumbo_guitar.htm
We call them "super jumbos" because Gibson considers their Dreadnought-like J-45s to be "jumbos." Whereas these look like parlor guitars on steroids, with bouts up to 17" across.
Did you know that the first "super jumbo" was made for a singing cowboy? Bet you can't guess his name. Here's a hint: He wrote "Back in the Saddle Again." Bet you still can't guess his name. But it isn't just a western guitar. It's been the favorite of many rock, folk, and pop musicians of all genres. And it's making a bit of a comeback. Click on the link above to check it out.