They're excellent speakers. Unfortunately, I believe the Eclipse tweeter is out of production.
When I accidentally damaged a tweeter in one of my second hand Eidolons I sent them an email with my request and speaker serial numbers. They promptly emailed a purchase request. I printed it and filled it out, enclosed a check and mailed it off. I received the part within a reasonable amount of time. Chit chat? No.
In addition to their unbelievable musical presentation I simply haven't tired of looking at their stunning, most imitated cabinetry for almost fifteen years. When guests ask why they're positioned out in the middle of the room I simply drop the needle and, well...