For Greenday tone, you will never exactly nail it with a JVM (the JVM is too stiff IMO), but you will get close.. The JVM can get close to many past Marshalls, but will never sound the same.
OD1 green mode, Treble 5, Mids 10, Bass 5. Gain 3. Volume above 4. Pres 5. Res 6. Master above 4..
Now that should get you close, tweak from there.. Well that is my opinion anyway..
OD1 green mode, Treble 5, Mids 10, Bass 5. Gain 3. Volume above 4. Pres 5. Res 6. Master above 4..
Now that should get you close, tweak from there.. Well that is my opinion anyway..