I have a Crown Com-Tech 410 power amplifier that starts making strange
internal noises and vibrations after it has been on for a while. The
sound output itself is unaffected and seems great, but the box itself
emits kind of a low "grumbling" sound and you can feel matching
vibrations when touching the case. Turning it off and on stops the
noise, but not for long.
Anybody have any guesses about what might be going on?
