@jafant, Actually the CS 3.5’s even with the up to 12 dB draw from the eq, thanks to its 4 Ohm nominal / 4 Ohm minimum load (actual 5 Ohm measured) in smaller rooms with less volume demands can get by with as little as 100 Watts into 4 Ohms. That’s a standard 50 Watt rated amp truly capable of doubling down to the load at hand. Though I generally suggest as a rule of thumb / general guideline that most users double a speaker manufacturer’s minimum suggested power. It’s the lower impedance’s that reduce the efficiency of some of the other Thiels. 400 Watts into 2 Ohms is like 100 Watts into 8 Ohms. I don’t think many would think 100 Watts is excessive.