I have a pair of K12's and just recently bought a K10 as a monitor. The sound is good, they are super reliable and I love the tote bag set up. I really have no reason to upgrade but of course, I am always looking into better speakers. The EV EKX's were recommended to me by a local PA shop. Apparently they have a nice smooth sound that's more natural than the K12's. In fact, a few stores I have spoken to, have mentioned that the K12's can have a bit of a harsh mid range, which I admit I have noticed on occasion. I have discussed this before on here, just really wondering if the EKX line would be a step up?