Hi - my first post on this forum (though I've just read a few threads)... I'm setting up my iMac G5 as my music storage/playing device. Have optical digital link to external DAC (Cambridge Audio 840c) which upsamples to 24bit/384kHz (lots of reviews think this is a Good Thing) and outputs to an amp. The best quality music I have stored is Apple Lossless CD rips at 16bit/44.1kHz. Would I be better-off setting up the iMac's built-in digital output in Audio MIDI Setup as 16 bit at 44.1kHz (same as best source music) or is there an advantage (or disadvantage) to outputting at 24 bit and 96kHz? Thanks for any advice, Jonathan.