I certainly don't men to offend any GK users out there! BUT the one that I had was probably a lemon! I had already sent it back to GK once and I DON'T want to go through months of waiting for them to send it back to me. In defense of that particular amp, I have to say that when it was working well, it was one of the BEST sounding amps I have ever owned. What did I trade this unit (along with my 2 Genz Benz 4-10T XB's) in for?....A brand new Mesa 400+ and a brand new 2x15B (4 Ohm) bass cabinet!!! My G.A.S. pains have subsided for the moment. I WILL miss the GB cabs & I would reccommend them to anybody. I tried to negotiate a trade with the GK & one GB cab...but it meant more "dead presidents" (Attention FBI/Secret Service....that means MONEY...NOT a threat). Tonight's my first night with Mesa Boogie stuff!!! I feel like I'm on a hot date with a beautiful woman (although SHE is on the HEAVY side). "She's so HEEEAAAAVAAY!!"