I recently bought two 1973 vintage Kasino (Kustom) 2x10 PA cabs for use as guitar cabs. There is very little information available about them online however. As far as I can tell they were originally sold with the Kasino Club PA systems rated at either 100 or 200 watts. The drivers are CTS, with square ceramic magnets. Assuming these came with the 100watt PA (just to be safe) I would assume they were originally rated for at least 25 watts for each of the drivers. Most combo amps seem to come with speakers that are rated for a good bit more than their amps are. Anyone have any idea how many watts I can safely try and push through these cabs? The speakers themselves appear to be in excellent condition with no tears, or dry rot. They sound great, but I haven't really pushed them too hard out of fear. They are pretty old after all. I'm not sure if I can even replace these drivers if I blow one. I haven't seen any online yet. Does anyone have any info about these?