Note the music I listed do not necessarily tax on watts/current, but more of speed, continuos mid bass punch/power/drive/agility.
Honestly, my turning point and what got me to re-think my whole set-up was when some friends, took few CDs off my rack--a couple of R&Bs, UB40, Sergio, and the Hugh Masakela's Stimela and played them on my then Ongaku, Tannoy, ML 30.5/31.5 (Jadis, EAD D/A as alternative) set up. They blasted them way up (not to room pressurizing level yet btw.), soon enough began winching and one commented.. "Why the hell spent so much when you can't even get to enjoy some real music properly". Sad, but quite true.. Bass was there--plenty, but just couldn't catch up in the speed, control and socks dept, and those 'continuos bass drives' at 'continuos loudness level' sure is a spell for disaster causing lower powered amps to clip and get mushy much too soon.
Hence, the prelude of my new quest.. VTL90s and on and on and on.. Got too engrossed into modifying this one, spent too much time and money on them, was basically listening to tubes, resistors, caps, wirings etc2 day in day out that music was no longer top priority--thought this was wrong, so sold them, but regretted since. (and yes, I think this particular VTL is a keeper, if ever they re-release, I'll buy them over).
Back to ARC new Ref series amps. Their availability, price, power, brand, good after sales service and re-salability in my country is what, for me, make them an attractive buy--the whole complete package. In a well balanced enough system, with some good simple tweaking, you could certainly ameliorate their weakness (if any), fortify on their strengths and make them sing--no problem, ime.