I've got the XM radio and I've become a bit bored with the 60s, 70s and 80s, so I've been flicking around and landed on a couple of the jazz stations. I have no plans to record a jazz band anytime soon, but I'm curious about how they are recorded, specifically the bass, acoustic or upright bass. I can generally hear the low notes just fine but when the bass players get into the upper register I can barely hear it. This seems to be the same regardless of band or age of the recording. If it's a solo, it's not a problem but when the whole band is playing, it gets lost. I'm just wondering how the bass is recorded...and maybe why it's recorded like that.