In my experience the PassLabs deliver super control of speakers such as the PMC Twenty26 vs like you found with the Evo, sounds a little weak with the PMC MB2SE. The ARC D240 MKII (120W per channel, fully differential) was much better able to deliver power.
Shocked. Need Opinions. How muck power do I need?
I’m moving so of my sound gear around. As a temporary measure, I set up my little Cambridge EVO 75 in my main system. Driving my Dali Mentor 6s in a large room (36x36). Speakers are 9 feet apart and seat is 10 feet from speakers. This 75 water replaced my much more powerful monoblocks. To my shock, the amp drove these speakers just fine. The bass was a little weaker, but perfectly acceptable. Here’s what I want to know— if 75 watts are enough, will 40 watts do? I’m talking all solid state. What say you?