Two Revel Centers Redux?

I previously posted a query...whether two centers (one below and one above, vertical array; actually two Revel M20s) was, in theory, a good idea? One key objective: placement of the voices squarely in the center of the screen.

Having lived with this arrangement now for 6 months, I can say that the answer is YES! I have experimented with numerous single speakers (designed as center channels, unlike the M20s), and never got this clarity, impact and center-of-the-screen localization before.

The main 'educated' criticism of this arrangement was that it would generate comb filtering. Also during this 6 months I read Floyd Toole's book on sound reproduction. The measurements that he and others have made show that this is not a concern. Well, so much for that well-loved theory.
Thanks for posting this. I am going to give it a try as well.

Please let me know what is your experience.

I'm convinced that, compared to a lot of the other stuff people spend money and time on, this is important.

Movie theaters get rock solid, in the middle effect by placing the speakers behind the screen. If you can afford a sound transparent screen, and you are using a projector, this is the way to go, no doubt. But if not, one above and one below, in my experience, is the next best thing. And that 'comb filtering' argument that the 'expert stereophiles' still roll out is not backed up by surprise, really.