SideWindeR [00]
New Member
- Joined
- Sep 13, 2011
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Hi everybody,
I have found your forum searching for a solution about a problem I'm experiencing with a JMP1.
Since a couple of days ago my JMP1 started to make crackling noises when playing on the low strings. I can emphasize the problem by turning on the bass shift or adding some basses to the eq.
Moreover, whenever I turn the preamp on or off, I can hear a loud pop coming from the speaker. It started to do this about a month ago.
Do you have any idea of what the problem could be?
I have changed the valves on the preamp about 4 months ago. Now it has 2 12AX7B. I have tried swapping back the original ECC83 valves but the problem persists.
Any idea or suggestion is more than welcome!
Thanks!
Guido
I have found your forum searching for a solution about a problem I'm experiencing with a JMP1.
Since a couple of days ago my JMP1 started to make crackling noises when playing on the low strings. I can emphasize the problem by turning on the bass shift or adding some basses to the eq.
Moreover, whenever I turn the preamp on or off, I can hear a loud pop coming from the speaker. It started to do this about a month ago.
Do you have any idea of what the problem could be?
I have changed the valves on the preamp about 4 months ago. Now it has 2 12AX7B. I have tried swapping back the original ECC83 valves but the problem persists.
Any idea or suggestion is more than welcome!
Thanks!
Guido