Our band practices at our drummer's studio. He has a Leslie-type cab in there, by a company called SISME - 18" Driver plus a rotating horn, built-in 100R RMS valve amp. I usually play my bass through this thing, and it sounds AMAZING. I played through a lot of amps in my day, but never had something sound so nice, not even real vintage SVTs. Does anyone have any info on these? I'd be really curious to find out more.