Can iPod Classic play aiff 24 bit resolution files?

a good question, this is.

from my research, a complicated answer is needed. check out these links:

https://discussions.apple.com/thread/4917752

"Yes, iPod does play 24 Bit audio at 48Khz, but only in the ALAC (Apple Lossless Audio Codec) format. Anything higher than 48Khz it does not play (well, I tried 96Khz and a message came up that it's not supported. I haven't tried 88Khz). I tried 24/48 WAV and the same comment came up. So only ALAC for 24 bit/48K on the iPod." - TRosado

http://www.mcelhearn.com/2011/02/22/itunes-and-24-bit-music-files/

"24-bit files offer only one major improvement over 16-bit files: an increase in dynamic range, or the difference between the softest and loudest parts of music. This difference would, however, be lost if the files were compressed. So the only way that Apple could offer improved quality in the music files they sell is if there were to provide them in Apple Lossless format."