Hello all. I just posted this in the Speakers Forum. Figured I'd try here as well:

I think I'm going insane, so I'm hoping some of you might be able to disabuse me of that notion. On some days, my speakers sound very full, rich, lots of low end and punch, etc., and on other days (same placement, receiver, recordings, etc.), the speakers sound quite a bit "weaker," more anemic, less robust, etc. I know zilch about electricity, but am curious as to whether it's possible that my electric service isn't consistently "strong" or effective or whatever word you want to use. Or maybe my receiver is working erratically? Anyone have any ideas at all about this? As I said, it may all be in my feeble mind... Thanks. Oh, also, if you've actually heard of something like this and there's an explanation for it, is there also a remedy that won't break the bank?