This maybe a controversial topic for some, one of those polarising issues that TGP seems to focus on. The quest for "tone" etc. Things that are hard to compare in tests without a lot of work etc. In most cases, vintage is usually preferred. Simpler circuits, less options etc. More pure and unaltered. I was thinking about this earlier and wanted to ask if there's ever been any hard evidence of these things, both in tube amps and also pedals (as a sidenote).. where if you have one circuit completely pure vs another with lots of switching options. It could be a tubescreamer with 3 switches for different options, or especially.. an amp. Things like effect loops, master volumes, channel switching, for some even this is too much and robs tone. Let's imagine an amp, that has switchable "voices" for the cathodes of various preamp stages. A 3 way switch like "fat, bright, full", with 3 different cathode bypass caps and resistors. Or switchable negative feedback resistors, switchable coupling caps. Switchable tonestack values for the slope resistor, or the bass cap. A switch for tube rectifier vs diodes. Some sort of chameleon amp with a whole bunch of options. Something similar to Mesa Boogie's philosophy. If you experimented with all of these types of switches and found a setting, and then removed all switching, so that these values were locked in. And then back to backed the amps in a comparison? How much tone difference would one expect? A subtle difference or a major difference? Would it be as simple as altering the EQ a little bit to compensate, or would one amp be more alive than the other? Just wondering people's thoughts.