I just got a used Mark IV Combo and I'm having trouble with the sound.
When I run it on Full Power on the Lead channel I get this horrendous screeching that swells, but I can't tell if this is just feedback or a tube problem. When playing, the tone sounds flaky, and is riddled with fuzz. Oddly, I don't encounter this problem when I'm on the Rhythm 1 or 2 channels.
The Lead Gain is set to 7, and the Lead Output is set to 2. The Master Output is set to 3.
What do you guys think?
When I run it on Full Power on the Lead channel I get this horrendous screeching that swells, but I can't tell if this is just feedback or a tube problem. When playing, the tone sounds flaky, and is riddled with fuzz. Oddly, I don't encounter this problem when I'm on the Rhythm 1 or 2 channels.
The Lead Gain is set to 7, and the Lead Output is set to 2. The Master Output is set to 3.
What do you guys think?