So my Soloist has the problem of the very loud popping noises when I adjust the volume. I have twice now sprayed the attenuator with electronic cleaner, it does help; the popping is greatly reduced. However, it is not eliminated completely and after awhile it seems to come back. This is quite frustrating for a $1000 headphone amplifier to have such a flaw.
Does anyone here have more specific advice on how to achieve the best results with cleaning the attenuator?