The Fisher XP-7
5-50 watts music power
12" woofer 6 lbs magnet
2- 5.75" inch upper and lower mid-range
2- 3" inch tweeters
*info from Fisher handbook, 1971*
I also found comments on the internet about XP-7 speakers saying the tweeters typically went bad after a few years and have to be "capped." My question is: What does that mean? What is "capping" the tweeters? How does it become necessary? Does this have something to do with capacitors? Should I need to replace the tweeters? They look like new and I think seem to be vibrating?
After I got home in 1973 I happened to find another pair of identical XP-7C's on the clearance shelf at Sears because of minor cabinet damage, so I bought them. The four of them always sounded great together, and they still do, except now after reading the comments about the tweeters I've been listening more critically. Perhaps now I'm only convincing myself the tweeters aren't working like they used to. I do know my ears aren't working like they used to either... but I sure would like to hear any comments you all might have for me.
Here is what they look like: