Having owned Apogee Diva's for six years I can tell you that I have never been so vexed by a loudspeaker. But at the bottom of it all is ribbon speakers are easy to damage and very unreliable. Even Magnepan's vaunted ribbon tweeter is subject to blowing. They have an ongoing tweeter replacement program. This issue was one of the reasons Apogee died. If you look online you will notice a that replacement ribbons are sold alongside ribbon tweeters. Replacing a 6 foot tweeter ribbon is quite an experience. Only the factory can replace a woofer ribbon. Because there are great and very reliable ESLs available there is no reason to go for ribbon speakers.
I haven't heard of any apogee ribbons blowing, it's usually the foam that encases them under the clamps and frames that deteriorates and then they buzz. The foam on the tweeter also deteriorates and then the tension isn't proper causing way to much movement of the ribbon.
I haven't heard of any apogee ribbons blowing, it's usually the foam that encases them under the clamps and frames that deteriorates and then they buzz. The foam on the tweeter also deteriorates and then the tension isn't proper causing way to much movement of the ribbon.