I just spent some time at a local Guitar Center plunking around on an Epi T-bird, and had the chance to do an interesting comparison. The bass was plugged into an Ampeg B2RE head feeding what I think was a B-115E (single 15) cabinet. I played it for a few minutes and it sounded really nice! (I made sure the EQ was set flat so it would sound fairly natural.) Then I noticed that there was a Behringer BX-4500H head sitting on the cab next to it. That's the amp I have at home, so I was immediately curious how that head would sound connected to the Ampeg speaker. Would I hear any difference between the heads using the same cab and bass? Answer: No difference I could hear. I set the Behringer head 's EQ flat, and to my ear it sounded just the same through that Ampeg cab. Interesting! The volume was moderate, but it sounded just as nice. And man, that Ampeg speaker definitely sounded good.