I live in a rather remote location, so finding an IB set-up within a few hundred miles will likely prove difficult. Nevertheless, I will certainly avail myself of the first opportunity that pops up. Till then, I am wholly satisfied that Bob's T-line is unlike any other I've heard, and that it produces the best, most articulate bass with which I have first-hand experience. As I've said before, hearing it for the first time was the first - and only - time in my music-loving life that my lower jaw literally went slack.
IMHO, a Timepiece Mini/Infra-Wave sub arrangement would be absolutely killer... especially for the $$$ involved, but even more importantly, irrespective of the $$$ involved. Take the best bass I've ever heard with significant strength into the mid-teens, and now combine it with the openness, clarity and tonal accuracy of the 'standard' SP Tech design... good stuff, my friend!

Hi DU,
Ditto on that.
What I would like to see is Bob do a deal with the Rythmik people so he can use their servo based drivers as they get rid of a great deal of the memory effect present in all conventional sub designs. The servo combined with Bob's TLine would take it to the next level again I think. It is essentially flat in response across it frequency range with bass performance similar to an IB.
Check out their web site for a look at what it does and why. The system works for both ported and non ported designs and they would certainly do a deal with Bob.
http://www.rythmikaudio.com/products.htmlPhoenix