Just out of curiosity, what application are you using a highpass that high and that shallow for? I'm intrigued
ahah! I was expecting that one. You often see articles here and there, about 44.1 not being for audiophile and that 96khz or more is the way to go... The Nyquist theorem states that a sampling rate of 44.1khz can reproduce perfectly frequencies up to 22050hz (SR/2). From time to time, when I get my hand on 'high quality' recordings I like to peek here and there to hear what's up there!
My findings, unless proven wrong, is that the recording is always the problem and the medium (CD in that case), is not. I got my hand on digital 192kbps version of vinyl records that sounded way better than CD.
So in general, I use the H-P filter when I'm curious.
I open the spectrum analyzer and set a range between 21500 and 25k, if I see something, I turn-on the highpass!
I like to peep my frequencies