I was taught how to record a bass from an old school engineer who showed me first how to multi mic a cab and how to combine that w/a di signal to get a good rounded bass tone on my recordings. Multiple mics include a "dark" mic (ex: Beyer 380, EV RE20 etc..) and a brighter mic (ex: Audio-Technica Pro 37R, AKG 451, Altec 165/175 etc..). Though he was literally the only guy I've ever seen multi mic a bass cab. It is common practice for recording six string guitar but from my experience not for bass...or is it? I certainly don't see it discussed much unless I'm just missing something.