They've built a huge lab in the back. You'll know it by the neon sign on the door which reads "Model C". We don't know much about this other than the 18", transparent aluminum woofers. Oh...and the packing styrofoam labeled "Model C" in one of Mojo's shipments.

You'll also want to look for a manuscript titled "Top Secret - Spinorama: Curves of tone and SPL, perfect sound these curves foretell". That's all the secret sauce right there, Bill!

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated