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→Mesa Boogie Mark II/IV tone
I find I can get a good Mesa Boogie Mark II/IV tone from the Uber amp. The key tweaks is to pre-EQ. I like a Line 6 Drive with Bass 25%, Mids 65%, Treble 75%. I set Drive to 0% and Output to 100% - the common filter/boost pedal settings. I find even this still might break up a little, so I put a Volume effect in front and reduce the level to about 50%. This makes sure the Line 6 Drive is only acting as a filter.
I also like to turn the Hum Amp DEP up to 55% - just this small tweak makes the distortion thicker and darker and more aggressive. I turn Bias X up to ~70% - this gives notes more "bloom" but doesn't lead to unnatural compression or wonk to the tone. Be sure to max out the Midrange on the Uber model - this is necessary to get a smooth sounding distortion. Keep everything else around 50% and adjust from there. Just keep in mind the amp's EQ is very influential to the distortion tone, not just the frequency balance.
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