Ok now that everyone here has received their IB (internet bachelors) degree in electricity, back to the VP160.

I was imagining the VP150 with two 6 1/2 inch drivers to replace the 150's 4 1/4 drivers, set in a cabinet the size of the M60 & ported. However I don't know that this center would be ..

A. different enough from the VP150 (same total number of drivers). And...

B. similar enough to the M60, as it would have an extra tweeter.

The design would be 'tweeter/6 1/2 driver/4 1/4 driver/6 1/2 driver/tweeter'. ButI don't know if the timbre match would work or not with the extra tweeter? The other model discussed with the tweeter over the 4 1/4 inch driver would pretty much be the only other possibility I can think of that would work. And the different shape would indeed give people more options for space limitations.

My Stuff :

M80's
QS8's
VP150
EP800
Denon 4802
Emotiva XPA-3
Samsung BD-P3600
Sharp 65 Inch Aquos LCD