Originally Posted by Sonic Atrocity
Forgive my lack of knowledge here, but does this mean if I'm using 16/48 (redbook audio, in lossless format of course) that I will be hearing stuff that is being exaggerated, or that I will be missing on something? I'm just looking to hear the actual product; neutral, transparent, and just the product - period.
Sorry for the freak question. I'm just doing research into a player because I want a source that will deliver what I just stated, and before I drop a bnunch of cash I just want to be super sure. :P
First, redbook audio is 44.1k, not 48k.
Second, the post you're quoting is misunderstanding the spec sheet. When one uses an oversampling DAC, the analog low pass filter is set at maybe 1/4th the oversampled frequency, not the base frequency. So at 44.1k and 128x oversampling, the analog filter cuts on at about 1-2MHz. The digital filter handles lower frequencies, and that is adjusted to match the sampling rate. In rockbox we actually do support higher sampling rates when possible, we just restrict the playback engine to 44.1k or 48k for efficiency reasons and because higher sampling rates are generally useless given how modern oversampling devices work.
But anyway, to answer your question, if you're just listening to CD audio, there is almost no difference between most quality devices, so you can buy almost anything and the output will be similar. If you want to use rockbox, I'd recommend the sandisk players, as they have relatively stable ports compared to the DX50. It will probably be a little while before the DX50 port is so advanced.