They sound great and the idea is super. However they seem to be as fragile as a glass rod. I have had to replace three in a year. This is with fans and a Furman usp 1000 suggested to protect them. I have also had several problems now with their BB2125 amps replacing two of them. They have warranted all until this latest BB2125 and I am replacing it with a 10 year old Denon POA2800 that has thousands of hours of use. I also dont care how good your warranty is when you need it five times a year and the system is down for two weeks at a time. Our home has 20k+ invested in Speakercraft equipment and everyday I have to wonder which one will break today. Good luck to anyone using there products. PG