Sometimes that's exactly what happens... the amp model matters of course, as does what you're playing and how you play it. But a lot of it has to do with one's choice of cab and mic models, with emphasis on the mics and their distance parameter. Any of the ribbon mics, especially when they're pulled back a bit, can sound quite dark. They tend to mitigate the need for really savage high cuts. But on the other hand...take a Strat bridge single coil, a liberal dose of gain, and a 57 positioned 1" from the cone, and it'll go through your head like a nail. The variables are numerous.