I acquired an SWR Goliath III for the princely sum of $0! It has a driver missing and the guy said he wasn't sure if the remaining 10" driver or horn was any good. Turns out they are! Anyway, I understand I can't get an original PAS driver any more. Would there be a good Eminence alternative? The cab is 4 ohm, so I need an 8. Cheers, Ian