iTunes question. How should I set "Bitrate For Audio Playback" & "Bits Per Sample For Audio"? The biggest setting available? I listen through a Windows computer, Firestone Fubar IV Dac/Headphone Amp, and Grado SR325is headphones. All music files are Apple Lossless. Thanks in advance.

Hello everyone. I have a pair of Grado SR325is headphones, and I want to take them away on holiday with me. What is the best way to carry them? I am thinking of the Grado headphone case, but I have heard that it is a tight fit and bends the cable. Any suggestions would be greatly appreciated.