Well, we all know that they both affect tone, but which would you say is more important? I think the amp is a bit more important, perhaps 70:30, or 65:35...Casue, if you play a great bass through a piece o' crap amp, it'll sound, well, crap. Whereas, if you play a piece o' crap bass, through an Uber amp of Dominion, you'll at least sound passable.