i have been playing bass through a (1973) model t (w/o the switchable midrange switch) for years.these amps are far and away better then the newer ones.clean +punchey and built like a tank.
just make sure you use good tubes like the GE or RCA 6550's. if you really want some bone shaken tone,go the big $ for some quality kt 88's.also, have the amp biased by a good tech. why pay mega $
for a hi- tech rig or a "vintage"amp when you can get a model t at a realistic price
point (usually $250-$400).you can get your tubes on the internet for another $150. then go show those SWR,trace elliot (trace idiots ) and G/K users what a bass amp should sound like.