I have 2 sets of original CLS. The interface box serial on one pair is 2634 and was manufactured in 87. The other pairs interface box serial is 3482 and was manufactured in 88. The interface box serial numbers are usually consectutive. I am not positive, but I believe that the first digit in...
I tried my PS300 with my CLS's and could not detect any improvement. So I tried powering them from my Cinepro 20 and still heard no improvement. Next I inserted some Versalab Woodblocks into the power chain. There was a marked improvement in clarity! Both of my power conditioners output balanced...