It's always one of the difficult things for me: Recording a bass. Normally I have a bass and an amp and than my ears. Now it's bass, amp, mike and DI, tube pre amps, recording stuff, a lot of compression, mastering, a pc, some small speakers and then my ears. What's the bets recording sound after which your bass will sound good on iPod earphones or tiny PC/car speakers...
In the end I'll just adjust my sound as I play live and I trust the engineer...
My point: A lot of things happen to a sound and Dave could be right.