anyone mount these? can you mount on either cross member, front or back?

I would mount them on the front bar. The speaker is big and if you mount it on the back bar it will stick out alot. If you mount them on the front bar then the grill will be pretty flush with the back bar and look much cleaner. Just my 2 cents. <img src="http://www.wakeworld.com/MB/Discus/messages/65921/475722.jpg" alt="Upload">

If you go to the Wetsounds customer installation page there are a couple pics of my 4 pro80 setup on a white/red Reinell with the pro flight swoop tower (mounted on the rear bar). I think, installed on either the front or rear crossbar looks/perfroms good. The reason I chose the rear bar was to somewhat protect the hearing of the passengers on the rear bench.

you can mount on either bar that works best for you

Thanks, I ended up mounting on the rear bar. It sticks out a bit but not too much. damn those speakers look sweet! I haven't tried to open my bimini yet. We'll see......