Nice , looks like they copied the JBL concept and took it up a step. More power, bigger woofer, stereo link ( which I think is a great feature, ) .
If I were doing bigger events I would consider a trade up from my Eon Ones but they've been doing a fantastic job for the size gigs here. Just did an outdoor pool party and pushed them pretty hard but they worked out fine.
Yamaha quality is also a big plus. Looks like they'll go for about $900 street so a pair of them wouldn't be too bad of an investment.