Has the fourth pair been refoamed recently? If not then refoam that pair as well. That is assuming they are all the same vintage and had the same storage conditions.
BABY ADVENT II
Just wondering what anyone besides myself think of these speakers?....I recently purchased a couple sets only needing 1 pair for a system I was setting up in my bedroom. but this lady had 4 pair still in original boxes with manuals, and made me a deal I couldn't refuse. I have to say, these are some of the best sounding bookshelf speakers I've heard, for the price. anyone else agree?