My Aria Pro II Mac 60 has some noises whenever i turn up the volume or tone knob, I wonder izzit ment to b this way or its becuz of faulty knobs etc...
if what you hear are some crackling noises, it's due to the pot's old age; chances are, its internals are rusty. you can use a contact cleaner (spray) to remedy this or if it's too decayed, get it replaced 8)
yeah....rusty pots it is.... i just sprayed some WD-40 into the pot (however didn't remove pot from pickguard-hence the nto so good outcome) and i realised the scratching noises were reduced greatly (but not eliminated...)