Ok, my ol' hi-fi system is being a PITA. The problem: Somewhere along the signal chain, the high frequencies are being cut out so the whole system sounds like it has a blanket over it.
The Components in question are:
Magnepan MGIICs (most likely)
Superphon Revalation Basic Preamp (next in line)
BK Components ST-202 Plus Amplifier (least likely)
I suspect that the maggies have lost their high end. I really want to test this though. What are the best ways to find out which component is malfunctioning?
Any ideas and suggestions are welcome!