#1
a little while ago I turned on my marshall 2203kk head and I turn on the standby and it starts thumping after about 5 seconds of being on. The thumping starts out slow and then gradually picks up speed. I shut it off and turned it back on and it started up again in about the same time frame. Off and on one more time and it didnt thump at all. Any ideas?

Also, for the past day or two the amp has acquired a loud startup and turn off thump (just one thump this time)

any ideas? thanx
#2
Quote by twistudriffer
a little while ago I turned on my marshall 2203kk head and I turn on the standby and it starts thumping after about 5 seconds of being on. The thumping starts out slow and then gradually picks up speed. I shut it off and turned it back on and it started up again in about the same time frame. Off and on one more time and it didnt thump at all. Any ideas?

Also, for the past day or two the amp has acquired a loud startup and turn off thump (just one thump this time)

any ideas? thanx


Check the capacitors, for leakage