"ARC has more detail up front, IMO ARC can be more hi fi sounding.
Overall cj easier to listen to over a wider range of recordings.
let the flames begin:)"
It is not an issue of flames but an understanding of what flavor for each of us rocks our sonic boat.
CJ ACT 2 is indeed a fine preamp. Just not my flavor. The ARC Ref 3 for me and my tastes simply lights up my ears.