Just to clarify...I was told that the final cab is these dimensions by Tom.
60"x42"x16"
The width keeps being noted as different values, which probably wouldn't matter for most, but it does for me

. This means that you can stack them 2 high in about 7ft give or take for fitting under those low ceilings. 4 would make a nice 10ft wide by 7ft tall and 16" deep wall of subwoofage behind a screen.

What about that possible price point quoted by Ivan for the kit?

Mr. Hedden,
I'm looking forward to your impressions of the new toys. Your familiarity with the TH50's and I assume many other high output bass devices means that if you like it, everyone else probably will too.