I have a circa 2005 Mac Mini. It works fine playing to my cheap computer speakers via the headphone jack, but when plugging into my old 1998 Denon AVR2400 via the headphone jack the sound quality from my ripped CD (WAV) files was noticeably inferior to the original CDs played through my Marantz CC 67. I'd like to connect to my stereo (or possibly my Mackie Mixer in the Mancave studio) to hear my ripped library at something close to the same quality as my current CD player. The Mac Mini has USBs, an old FireWire, and the headphone jack. Recently I've started ripping Apple Lossless to save space on my drive. What's the best way ($50 budget) to connect to the RCA analog in's on my studio/AV equipment? Cheap USB DAC? Will this be better than my headphone jack? Thanks for any help.