Thank you for answer.
The parts i'm looking for AMP control and MASTER volume control
By the way, if you go into that link, there is no hd500x in the compatibility list.
Is the capacity and specification suitable for POD HD500X
The potentiometer of the hd500x is broken and will be replaced.
Does anyone know the resistance capacity of the POT used in the hd500x or where the corresponding parts are sold?