Amazing 4x10. I perform with a Warwick Thumb and an NS Design NXT Double. This little gem handles both with grace and punch. Tight accurate sound with zero speaker distortion. Just the right amount of high end to project a great slap tone as well. And it is light as well as sturdy. The only caveat per my use is the sub-sonic sub-harmonics produced by the eub. I also perform with a 6x10 Goliath which projects that uber bottom, but that is not a comparison, just note that if you need that kind of bottom end I recommend speaking with your sweetwater rep about stacking options. My rep at Sweetwater is the best. No BS, no hype, and knows his stuff. He made my options perfectly clear and led me to what I believe was the best purchase for my needs. The Goliath now stays at the rehearsal studio and travels with the rig. The GK stays at home for practice. With the exception of the uber-bottom the two units are very close in tone making the transition transparent. The only thing I need to haul is my head. Perfect solution for me. No more 10 mpg monster truck to get to the gig. Bravo Sweetwater and Bravo GK!!!