Wayne Parham Messages: 18789 Registered: January 2001
Illuminati (33rd Degree)
I don't know about the EV DH1A/HP940 horn tweeters, but the four π loudspeaker uses the JBL 2226H midwoofer and the Eminence H290 horn with either PSD2002-8 or DE250-8 compression drivers. I'd be happy to send plans if you're interested.