Hi Fredrik,I think ARC and Gamut the impedance and Gain is match,but sometimes if you didn't try ,you will not know this mix and match is it suitable for you.and you know for beginning Gamut product is working in studio,so the sound should be monitor,and ARC ref 3 also very accuracy,so...........or may be you will love ARC match Gamut.at last,everybody taste different,just go to try,hear what you want.
Sam
Sam