Thanks to everyone for the advise! I would have likely never even heard of Rythmik if it wasn't for you guys!
I will be busy for the next month. And I need to wait that long for diy concrete speaker parts anyway.
This is what I have planned next month... Order the sub and receiver and built the concrete speakers. I will hope for the same audio quality MrBoat had with a similar setup. Then depending on my satisfaction with my diy speakers, I can either be happy enough for a few years, or immediately audition the speakers we decided on in the other thread.
