All I can say is WOW ! I had recently purchased the Hartke tx600 as a back up amp while my GK 1001rb was in for repair, because of the light weight and ability to plug in headphones and MP3 player to play along and practice. It didn't quite have the power and kept cutting out (on the low end) while having band practice with my 410. I returned that and got the Fender Rumble 800 because of the same features I mentioned and was blown away ! So much power in such a small lightweight package. It pushes my 410 with power to spare. I opted for the 800 after playing the Rumble 500 at our rehearsal studio, which by the way, the 500 rocked, and I figured for a few bucks more, why not get the 800. So far my only complaint is that I can't rack mount it due to cooling purposes from what I understand. I recommend this amp to anyone and everyone !