I currently don't use an amplifier. I have use many different brand and types, but when you use a Axe Fx, the direct sound output is all you would ever want. At home I plug straight into a mixing desk and then to the studio monitors. Live I use either one or two (stereo or mono) Dynacord Self powered Full range speakers. The sound is everything I could ever want. I have sold off most of my amps now, the only one I still have is a Line 6 DT25 head and 12" Cabinet. It sounds great, has great tone and I have kept it so I have some sort of amplifier when needed.