From Ultra Audio's Jeff Fritz comparing a $15,000 speaker to a $36,000 speaker:
"In April of this year I reviewed the Sonus Faber Amati Futura loudspeaker ($36,000/pair), which costs well more than twice the price of the Dynaudio Confidence C2 Signature. I compare them here because, of all the speakers that have visited the Music Vault this year, these most closely resemble each other in terms of sound. The Sonus Faber is more luxuriously built and more seductively styled. It’s also a four-driver, three-way design. The Amati Futura sounds slightly bigger than the C2 Signature, with bass that goes just a smidge deeper. The soundstage thrown by the Sonus Fabers is a bit more wall-meltingly expansive, which conveys slightly more of the original acoustic environment captured in live recordings. That extra $21,000 definitely buys you more.
However -- and this is a big however -- the Confidence C2 Signature more than held its own in a number of areas. First, the C2 Sig was just as neutral and clear in the midrange as the Sonus Fabers. If you listen to tons of vocal music, I don’t know that you’ll hear that much of a difference between the two models. The Dynaudio could reproduce the textures in male voices just as well as the Amatis. In terms of midbass punch, there was no doubt that the Danish speaker was easily a match for the Italian. In fact, this is one area where the C2 Sig, with some music, pulled ahead of the Amati. The Dynaudio’s propulsive midbass fit Bon Jovi and Rage Against the Machine better than what I remember from my evaluation of the Sonus Faber.
But the Confidence C2 Signature really shone in the highs. I can say with, um, confidence that the C2 Sig seemed to have more energy in the highs than the Amati Futura, but not at the cost of harshness, grain, or long-term listening fatigue. Whereas the Sonus Faber leans toward the softer side of the ledger, the Dynaudio was more neutral up top, which gave it a more exciting sound, especially with rock.
This comparison makes the Confidence C2 Signature seem somewhat of a bargain in comparison with the Sonus Faber Amati Futura. It is."
I believe Jeff also liked the Raidho C2.1 more than the Futura.
This is not meant to imply that the Futura is not a good speaker, because it is. It may be the most beautiful speaker I've ever seen. And its bottom end crushes the C2's. But I didn't find its treble performance to be commensurate with its price or its performance in the mid-range or the lower octaves.