The axiom weighs 58 lbs my Emo xpa 3 weighs 57 lbs an XPR 2 is 100lbs the 7 channel Emo is a measly 29lbs. Not sure what the weight difference is depending on how many channels with the axiom. I looked at outlaw but that's in the 3500 bux plus shipping.
I have TWO Outlaw 7125s, great amp especially if you can line up a "B-Stock" item however, they are hard to get and go quickly. FYI, about the high end 7 channel Outlaw, except for their 200 watt monoblock amp which is manufactured in Taiwan, all of Outlaw amps are made for them by ATI technologies out of California, once again, like Axiom, another reason for the price differential with Emo.