I recommend having a play around with the free sample files from www.2l.no where the same recordings are available in various formats. 192kHz does not bring anything useful to the musical party, IME, but I do find 24bit 96kHz to be best. That said, I have recordings in that format which are bettered by plain CD versions of the same performances, so even though something has been overhauled and flogged by the record companies as genuine high-res (and most are), that does not guarantee that the remastering has not ruined the sound. There are many variables here, but the one certainty is that we don't need bit depths greater than 24bit, nor sampling frequencies above 96kHz.