Thanks for the quick answer! Can I use the JBL 2226H instead of the 2227H in a professional series four Pi speaker? The reason why I'm asking is that I have some brand new 2226H's, which I'm not using.

What kind of HF horn is used with the 2426 driver? I will probably build some wooden horns, which are similar to the ones used in the professional series four Pi speakers. I want wooden horns in the four Pi speakers since I want them to match the wooden horns of my front speakers.

Could you please e-mail me a copy of the plans and crossover circuits for the professional series three- and four Pi speakers?

Thanks again, sir!

neriks