Thanx for the reply, Issac
I am going to try the D130Fs, but, like you say, don't want to risk ruining a good, OLD pair of vintage speaks that are nearly irreplaceable if they are damaged.
These D130F speaks are in an old Bassman Dual Showman Rev. D130 cab, so yes they were intended to be bass guitar speaks. By the look of the cabinet it doesn't look like much thought went into the build as far as sonics. Prob'ly just built a box big enough to hold 2 15"s and called it good enough. lol
Just worry about damaging OLD OLD stuff. Also have a '70s Marshall Bass 4x12 cab with Greenie NOLA "4" Celestions I don't use anymore for the same reason. This old stuff is irreplaceable, and if damaged, sure, can be reconed - but to modern specs I would imagine. The Celestions in the Marshall break up way to fast for my taste anyway. And YES, it IS a bass cab, too!
Just looking for a good plentiful, durable, not too expensive set of speaks I can throw into this 215s and still get kind pf close to the same old 70's vibe.
EDIT: Hey, Isaac --- after thinking about it, I bet this WAS a guitar amp - why else would it say "Rev."? Apologies - I have the Bassman stuck in my head. Damn AADD!
I've never known a 6 stringer to play through 15"s, but I'm thinking the Fender Dual Showman was a guit-fiddle amp - not a bass amp.