Love this project! However, I have a couple questions:
1) Klipsch is currently quoting $198 for each of the K-42-K woofers, making the Delta Pro a lot more attractive. However, PartsExpress currently sells 2 different Delta Pro models, the Delta Pro 12A and the Delta Pro 12-450A. Which one did you use? Which one do you recommend? Specs are at the links. BTW, the 450A model is $20 cheaper.
http://www.parts-express.com/pedocs/specs/290-510--eminence-delta-pro-12a-specifications.pdf
http://www.parts-express.com/pedocs/specs/290-511--eminence-delta-pro-450a-specifications.pdf
2) For the B&C DE10 compression driver, I'm unclear on whether that is supposed to mate with the Klipsch horn or whether I need a new horn. When you talk about trimming, do you mean trimming the plastic fins on the driver?
Thanks!
Gary