@porscheracer. Best you talk to Don about it , in my case since I had purchased it from a AudioCircle member the unit was a year old although it had all the Bells & whistles. Don recommended, that he could upgrade the power supply caps to better ones that he uses now and extra output 3.3 uf Capacitors for my Odyssey SS (to get better bass) amplifier and change some of the board and input wiring to Dueland & Neotech to bring the unit up to date with his latest thinking , for me it was cost effective to do that , So I decided to go for it , in your case you probably will have his current Standard for the unit.
I can tell you one thing you wont regret it , I just love the unit !
I can tell you one thing you wont regret it , I just love the unit !