Looks like it only has 2 fader start channels instead of 4... I would think that was done because Pioneer would want you to upgrade from that mixer if your a 3 or 4 deck dj. The 750 is NOT Traktor certified. It is just midi mapable. I think the 750 NOT having the filter knobs are a HUGE difference. Even though you can use the filter in the effects section. The booth outputs are RCA and not 1/4.. But that is not that HUGE of an difference... I think the big thing will be..... Will Pioneer price it under a $1000 bucks and put it in the reach of young djs that want a Pioneer 4 channel mixer, but can't afford to pay 1500 bucks for one??