I was able to spend a couple of hours with the KT45 yesterday.
It's a great amp in many ways. I love the simplicity (as with most of the Z-Amps) but this amp is a Rock and Roll Monstah!! Plugged into a Z-Best it was ready to rumble... and it did! As far as using this for gigs it will most definitely need the Z-Brake for what I do, but I think I'll be taking this baby out some.
I've had other amps with a pair of EL34s before, and it's hard to believe that they were rated in this same wattage range. After using Dr. Z EL-84 based amps for the last 10 years, this is a whole different beast for me and it will take a little getting used to,but I think I'm going to have a great time doing just that.
By the way... it's RED!
I'm Rick James...