Hello. I'm a longtime Crack user...er, listener...
I haven't done anything to modify or alter my Crack for a long time, but recently (perhaps since trying what ended up being a screwed up power tube) on occasion, I hear a slow and steady buildup of static in the right channel. The static is not affected by the volume knob, and is resolved by unplugging and re-plugging the headphones. The Crack sounds fine after this.
Any ideas as to where to start looking to resolve this? Thanks!