Hi Mel
In no way can I dispute another person's "subjective" findings as they naturally vary from one person to the next. I'm in no position to comment on the built quality of the amplifiers either. All I can state here is what I heard with my own ears. I'd choose the Constellation over the Soulution amps I've listen to. I didn't care for what I've heard from Boulder either in the past. Vitus was preferable to Boulder and Soulution for my taste. Again these are just one man's personal impressions. It's likely my individual taste are very different from perhaps yours or the WBF folks that you cite, that's all.The audio systems we develop in our homes reflect what type of sound we desire or seek. Boulder and Soulution probably have impeccable built quality, I just don't care for their sonic results. Good components require good engineering but there's also art involved as well(the human touch and intervention factor). As always YMMV.
Regards,

charles1dad November 29, 2014 12:58

This year at CES I heard Constellation driving the Magico S5(can't recall the front end) it was very good during a long listening session. This amplifier sounds better with Magico than the Soulution amps I've heard with them.A matter of taste I realize.

charles1dad November 27, 2014 19:56