Yep... I tried it yesterday. I see what you mean. It's like popping the clutch on a Lamborghini Diablo... It's hard not to notice the difference. Lol! Definitely brighter and more cutting upper-mids... As if you needed them. The UL is an amazing amp that I'm surprised doesn't get more praise around here. I've owned them all.. And the UL can hang with the best of them.