You do not mention equipment. Tubes? SS? Whats hooked up to the speakers? What type of power conditioning equipment? Does this just happen right when you turn your equipment on?
If its tubes you could be experiencing warm up of a bad tube. If you have equipment that uses a remote this could be a problem with the electronics for the servos that move the volume control and switch the imput.
If its tubes you could be experiencing warm up of a bad tube. If you have equipment that uses a remote this could be a problem with the electronics for the servos that move the volume control and switch the imput.