they are both rated at 125/ch but the EMO is cheaper. the weird noises I've read about with the EMO on channels 6 and 7 is a non issue with me because I won't need them and if I did I have an old Marantz 2 ch for it. Any clear advantages of one over the other? The Emo sure seems to be a heavy sucker. I still put stock in an amps weight. The 7125 is not exactly light comparatively. any input would be great.