I bought a Road King II second hand. The owner is offering to have it serviced if it needs but I'd rather not put him out if this is typical behavior.
On channels 3 and 4, when turning the treble up, the bass and volume drop. When I turn the treble down, the volume and bass increase.
With the treble at 11:00-1:00 it sounds pretty normal but when I go past that in either direction, you can hear the described behavior. In the video you will see what happens on channels 1 and 2 (clean) to compare. Treble up, volume goes up.
Disclaimed: Not a guitarist hence the playing and lack of amp knowledge.
https://youtu.be/IFaNtg-FWFk
On channels 3 and 4, when turning the treble up, the bass and volume drop. When I turn the treble down, the volume and bass increase.
With the treble at 11:00-1:00 it sounds pretty normal but when I go past that in either direction, you can hear the described behavior. In the video you will see what happens on channels 1 and 2 (clean) to compare. Treble up, volume goes up.
Disclaimed: Not a guitarist hence the playing and lack of amp knowledge.
https://youtu.be/IFaNtg-FWFk