Ok so I just got an alternative offer for the XX18 from RE Audio They will sell for $400 each. Apparently its the same driver as the xxx18 except for the motor. The fs is 20 hz. According to their website it has a 1.9" xmax which translates to a 48mm xmax whereas the XXX18 is 54mm. They can build as many as we want in just a few days.
Does this sound like something any of you would want?
If I buy these I'll put 2 in an isobaric configuration so I can get a very low F3 close to 20hz in half the box size, 4-5 cu ft. I want to have my cake and eat it too. I know there's a lot of arguements against isobaric but oddly enough the best musical and HT subwoofer's I have heard have been isobaric, ie Seaton Submersive and 2x Epik Empire's, 4x Epik Legend's. I'm waiting to receive my Laguna Drill Press so once I do I'll be building my own cabinets instead of going with the parts express ones. Plus I managed to get smoking deal on a surplus of 3/4" thick Baltic Birch Plywood, $37 for a 5x5 foot sheets.
Is 2" thick baffles overkill?