I played at our local jam on Boxing Night. As the 'only bass player in the village' I get the dubious honor of playing for 4 hours without a 'break'.
Anyway - the pub now has a DJ with a 16 Track PA, subs and tops. So I left my amp and cab at home and dug out my StudioSpares DI (last used before Y2K).
5 minutes fiddling with the PA (bass, parametric mid, and treble) and bingo. I sounded just like me. I still don't know how to describe what that sound is though.