They age like any other speaker. The Duetta II Signatures have been super reliable since my dad bought them in ‘88. I acquired them from him 2 years ago. I’m driving them to Music Technology in VA this coming week to have them totally redone, including crossovers (Wilson caps). The refresh is going to cost me $8,200 and worth every penny. They are very special speakers when paired with the right components and interconnects.
Apogee Acoustics repair
So I found out that there is a repair facility in Nevada for this brand. www.truesoundworksaudio.com looks like a rebuild is $1,500.00 .