iMac vs Primare
So since I have the place to myself, I can strew the living room with lots of equipment with impunity.
Anf if anybody was wondering, the iMac (straight from the headphone socket, as opposed to into a DAC), is not as good as the CD player when playing the same material - there's a noticeable 'thickening' to the sound. It's better than the Airport Express - in fact for casual listening I could probably live with it. So that scotches the 'An Apple Computer is an audiophile music source' rumour.
If I could find my toslink-to-mini-toslink cable, I'd have stuck it into the DAC on my Yamaha and out through the preouts to see if there was any improvement...........