CLS panels from 2009!!!

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raanan17

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Aug 9, 2009
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Just received my second pair of CLSs.They date from the same year as my first pair-1989,but the seller had to install new panels in order to sell them.
Looked up the serial no. in the Sticky.According to the sticky-they were made in 2009!
The previous panels that I bought new in 2003, were manufactured in 2000.
Is panel life expectancy determined by date of manufacture or length of use?
I turn off the electric supply to the speakers when they are not playing in order to prolong their lifetimes.
 
Any CLS after the CLS ia had the power shut down installed in the crossover. I would love new panels. Mine are OK but do buzz at times.
 
Date of manufacture is probably at least as important as the amount of use, but storage conditions (exposure to sunlight, humidity, dust, etc) is a very large factor in life expectancy.
 
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