So recently my Mark has been making a crackling noise, it started off as fairly intermittent but has become fairly constant. It doesn't really matter what channel I'm on and will happen even if the guitar and FX loop aren't plugged in.
The only thing that seems to make a difference is Variac power. It still happens, but it's much quieter and less frequent.
I'm assuming it's a tube problem, but preamp? Power? Something completely different? If anyone's got any ideas it'd be greatly appreciated, especially if it can save me from having to spend a ton on tubes.
I took a short recording just to give people a better idea.
http://soundcloud.com/icronic/mark-v-crackle
Thanks
The only thing that seems to make a difference is Variac power. It still happens, but it's much quieter and less frequent.
I'm assuming it's a tube problem, but preamp? Power? Something completely different? If anyone's got any ideas it'd be greatly appreciated, especially if it can save me from having to spend a ton on tubes.
I took a short recording just to give people a better idea.
http://soundcloud.com/icronic/mark-v-crackle
Thanks