zafreemusic
Inspired
Hard to say what you're describing as fizziness without hearing an example but, some things to maybe try are:
If you post an example even just a couple power chords where we can hear what you're talking about, some of the more advanced users I'm sure could point you in the right direction.
- Use less gain and treble and turn the amp up. A lot of amps (not all) don't use 0-10 scaling and therefore the knobs typically have to be lower than IRL. Then use a boost pedal if you need more gain.
- Turn off the input gate
- Turn off speaker compression, lower speaker drive, try soft/med/hard breakup modes and adjust thump.
- Increase Negative feedback
- Decrease Master Bias Excursion, although this is what make the amps sound raw and real, rather than polite and modelled.
- Change the preamp tube type and/or adjust the hardness.
If you post an example even just a couple power chords where we can hear what you're talking about, some of the more advanced users I'm sure could point you in the right direction.