i found a very old ampeg bass amp on a garage sale so i picked it up for next to nothing. its very comparable to the modern day b50r series but theres no r on the end. i believe its some kind of an earlier b50 or something. the speaker looks to be about 8 inches in diameter and i believe the power is 30 watts. if you have any information on this, or could direct me to some, thanks in advance.