Quality speakers are made to quality standards and can last for decades.
I have a pristine pair of ADS L-520's that I bought new in 1980. They are currently used in a secondary system. They have been well taken care of, not exposed to temperatures extremes, driven with only quality electronics and their woofers use butyl rubber surrounds that will last forever. So I see no reason that I can't get another 36 years out of them.
I have a pristine pair of ADS L-520's that I bought new in 1980. They are currently used in a secondary system. They have been well taken care of, not exposed to temperatures extremes, driven with only quality electronics and their woofers use butyl rubber surrounds that will last forever. So I see no reason that I can't get another 36 years out of them.