I'm explicitly not talking about clipping distortion, though sibilance is often emphasized by such (so if it has clipping distortion and/or is badly mastered AND has bad sibilance, then please feel free to post it here). I'm talking about sibilance (mostly in the 2-10 kHz region, it seems). I'm trying to think of a really good example, but if I could, then I wouldn't need this thread. I usually hear it most in earlier pop (pre-1970) recordings.
And yes, what I am looking for is mostly human speech sibilance -- like a mic without a windscreen type sound.