I just asked Doug Roccaforte this question in a private email, but thought I might ask this of the rest of you. Why are most amps designed without an adjustable solo boost feature? The Mesa Rectoverb has an excellent design ( tone leaves much to be desired though ) as well as the Koch Twintone and the Egnater Mod 50 (my personal favorite). They have clean and overdrive, with an adjustable solo boost which actually boosts the volume for solos. My Egnater for example has 2 gain and master volume knobs for each channel so that the player can adjust the amount of gain and volume for the clean and overdrive settings. To me this is something that all amps should have from a functionality standpoint, but few amps do. I love the sound of the Soldano SLO, Komet Concorde, Roccaforte High Gain 100, Fuchs Frost 100 and many others. But to go from rhythm to lead requires the use of the volume knob on the guitar or a volume pedal...thus either my rhythm tone is muddy or my lead tone has too much gain. Adding an adjustable solo boost seems to be no more than adding another volume knob per channel and a provision to engage via the footswitch. Can some of you share your expert opinions on why it is this way? Pros solve this problem by having multipule amps on stage, but the rest of us do not have the budget, road crew or desire to carry around a multiple amp setup.