On saturday nite I used a similar set-up, small club with there own FOH, I'm using a Behringer BDI 21 V-Tone bass driver \ modeler DI, Ampeg B200r amp, not a big fan of heavy midrange so the low and high mids are back-off a bit, I go conservative with the drive ( 12 o'clock or so ) and full blend ( tube emulation ), I know some would say its a bit much with the B200 being a tube preamp also, but the sound tech tried both the DI balanced out and the amps balanced out and he preferred the amps post EQ out, all I heard was what was being produced by the amp, so could'nt tell you what the house heard, but every body said the bass's had a real 70's 3 piece sound, mission accomplished me thinks !