http://www.usspeaker.com/homepage.htm

Looks like getting the woofer suggested by Steve up here to Canada is going to be very much cost prohibitive, I can however get teh above driver here for about $90.  

What kind of crossover might I need to use these with the Selenium 210ti compression driver.

What other bits might I need.... L Pad?

I really need this part spelled out.

thanks
Ray

Question on this topic for you Steve, since you brought up the subject of the guitar speaker above.  If you are using a guitar speaker in the Pro12M design and using it for the purpose of playing guitar through it, would using the tuning board enhance or improve the sound of the lower frequencies?