i just got an old (late 70's) bag end catalouge in the mail that i won on e-bay today. really wild stuff in there that is no longer in production but that i recognize from countless gratefull dead photos. they had a 1x15 that was even bigger than the s15b (22"x32.5"x29" vs the s15b at 18"x27.75"24") huge! Also had 2x15 cabinets that looked like doubled up s15's and s15b's. Not to mention really freaky biamp cabinets with multiple 5" speakers along with 10's 12's 15's or 18's, and soem wild pa cabinets containing 16 5" drivers and a matching cab with 4 hi frequency horns. Coolest thing of all was the matching birch rack cases they would make you in whatever configuration you wanted. Definitley a blast from the past. I think i'll ask them to custom make me some of those oldies.