((((My amp is Audio Research, tubes, about 130 watts/channel. I believe this is enough power for both the KEF Reference 3 and 5. At least one person has told me that the 5 actually doesn't sound as good as the 3-- that despite more bass it sounds less integrated )))
Why worry
Take that ARC amp and install it on the top section of Vandersteen Quatro's CTs
100 hz on up with the Hi-pass Think tight Bass or bloom in the bass your choice but you are in control. The built-in Quatros CTs amps are going to outperform any of the above in foundation with their tunable to your room compensation adjustment flexibility and total performance, you win because it is now bi-amped, seamless, full range, with drive excitment,balls and time correct as well.
Otherwise just keep your Proacs.
Best JohnnyR
Why worry
Take that ARC amp and install it on the top section of Vandersteen Quatro's CTs
100 hz on up with the Hi-pass Think tight Bass or bloom in the bass your choice but you are in control. The built-in Quatros CTs amps are going to outperform any of the above in foundation with their tunable to your room compensation adjustment flexibility and total performance, you win because it is now bi-amped, seamless, full range, with drive excitment,balls and time correct as well.
Otherwise just keep your Proacs.
Best JohnnyR