A few years ago I owned a pair of their Isis speakers which I liked very much, however the diamond tweeters blew out and they wanted $10,000 for a replacement pair of the Acuton diamond drivers. I sold the speaker and said I would never have anything to do with Avalon again and that still is my stance. They make a good speaker, however they will kill you on a repair. There was also a real sense of arrogance with their customer service people.