i have in my possession an Ampeg B-100 (not the rocket amp). It is vintage circa 1960-1979. Not sure of the year, all that I know is that's it old, and the speaker is blown. I don't know what the wattage is, but it is a 10" speaker. Here's the information that I accumulated on the beast MFG Number: ASB100 Model:1101 120V 50/60HZ Help? Oh there is a tweeter slot available on the combo. Any and all help is much appreciated.