Totem Arro vs Revel Concerta F12

I have the Arros as well, but they definitely need a sub if you want appreciable bass (I have the Storm). If you look around, you can find measurements for both speakers and it appears that the F12's have a flatter response and more bass, but I would add that may be misleading, given that the charts haven't been done in identical listening conditions.

A couple of points,

I'm right behind you, as I have rearrange my listening space for more room for speakers. I'll wait a bit, as the new Revel line is coming out now, so it may be worth waiting to see how the F206 shapes up.

I would keep a contingency fund for a sub if you want deep bass. The F12's might meet your needs without though.

F12's come up used on a regular basis, and I suspect the dealer demos will show up soon.

P.S. Totem Bass is fast and quick; just not enough. I blew two woofers before I got the sub.