My P.Audio PA-D45 compression drivers arrived on Friday :-) They are now installed on a pair of JBL 2370A horns.

I have not as yet built the Pi 1KHz Crossover for it yet, so, for testing, I just hooked up a 10 band graphic equalizer, and set the controls to flat (I also played around with other settings), and all freqs below 1KHz I set to -12db so it wouldn't get through much.

The sound is a bit strange... sort of "blurry", or "harsh", but thats not exactly the right word, its more like this at higher SPL levels. They do sound quite different from direct radiators. I was thinking, maybe when I build the proper crossover etc, this might fix it. Has anyone got any comments?

Adrian