I was lucky enough to purchase a beautiful set of Forte 1’s in zebra wood about 8 months ago, and have enjoyed them almost daily ever since. I was told they are original, and since they appear to be an early set (round cup on back indicating 96db efficiency apparently would suggest an earlier set in the run), that would put them at about 25 years old. I must admit, I like my music (much) louder than most, at times, and when the speakers are really pushed, I sometimes hear a “pop” from one of them. I don’t believe it’s the amp clipping, as it’s a MC 2205. Wondering if this might be an indication the caps might need to be replaced, or if there is a way to test if the caps are on their way out. First post, I apologize if this has been covered already elsewhere.