have you considered emailing celestion and eminence?
I haven't actually got round to emailing them myself about what I'm after (big surprise), but judging by the great reply I got from weber, that'd be worth a try.
Or even email the guys you're thinking of buying the speaker off...
some of the HC guys are very set in their ways, IMO- they'll fork out for a boutique head, then refuse to use sxpensive speakers and pickups, etc.
seems a bit retarded to me. kind of like buying an expensive rig and using stagg leads... (which reminds me, I have to upgrade those dodgy stagg patch cables I have :lol: )