I have owned both the 4004 and a DNA-1 Deluxe, which is a little differnet animal than a DNA-1. I had both for about 2 years driving Maggie 3.6R's with a VTL 2.5 preamp. Aragon had more bottom end and was darker to my ears. The Mac is one that you can listen to for hours and hours without tiring of. I have moved on to a DNA-500 now. Both are good amps(Aragon/Mac), but I think the Mac is faster, warmer and a better deal, depending on your speakers.
Good listening.....
Good listening.....