Let's see...
The most inexpensive is the Brix @ $399.00 per pair and the most expensive would be a tie between the Esoterix 1 MkII @ $4200.00 and the Seismix 7 Sub. The price is all relative to what your budget is. I have been in places where the speakers were to expensive and other have laughed me out the door because they were to cheap, go figure.
Any who, the Seismix 5 MSRP is $2650.00 (in black ash timber) and $2800.00 (in Jarrah timber). The Jarrah timber is beautiful. The pieces are all pre cut and numbered (on the inside of course) so that when the speaker is built the grain matches all the way around the speaker.
I'm in the process of setting up a dealer network around ATL and then it's on the road I go. As soon as I have some dealers around town I may be able to get some ummmmm..."samples"

. I just got'a make sure this thing has some legs and is off and running, then I can start helping out friends.