i can't
really answer your question but i have a Super Twin and it puts out
plenty of low end, more than i usually ever need in the places i play.. but then again, i also have a Super Mini and i kinda like it's voicing more
because it rolls off the boomy bass! at least for rehearsals. the Twin mostly gets the live gigs. So the ST certainly can deliver low end but i reckon that if you really like the bass that goes boom, you'd want another BB or a big twin. i haven't tried either, but i think they're voiced deeper than the ST.
but lemme know if you're selling a SM T with silver cloth.