I found a old used 2x15" cab in a store and wonder if this could be a good cab for a vintage Ampeg b-15 type sound? It´s supposed to handle 150W. The brand of the cab is Malmberg or something. Are the speakers any good?
Altec stopped making guitar and bass speakers sometime in the 70s. The older 400 series (418, 421, etc.) were very good drivers. Not sure if repair parts are still available. At the time, they were considered up there with JBL, EV etc. as premium speakers. Hope this helps.