your problem is definitely the dac, but you'll need to do better than the Dragonfly. At minimum you could look at the Musical Fidelity Vdac, Cambridge Audio DAC or Moon 100D.
If you burned in Apple Lossless you are fine there. PureMusic works well and is a lot cheaper than Amarra. Cabling (both the USB/Toslink) from the computer to dac, and the interconnects from the DAC to your Adcom pre also make a big difference. Spend a few bucks on some decent ones.
If you burned in Apple Lossless you are fine there. PureMusic works well and is a lot cheaper than Amarra. Cabling (both the USB/Toslink) from the computer to dac, and the interconnects from the DAC to your Adcom pre also make a big difference. Spend a few bucks on some decent ones.