I have a pair of Abbys and a friend uses de Capo's. I haven't heard them in the same system, but I have heard them with the same amp.
IMO the Abbys are not as good an all-around speaker as the de Capo - they don't have as much extension top and bottom, they don't have the dynamic capability of the de Capo, and there are obvious resonances that the de Capo doesn't have. What the Abby does have is a wonderful sense of life and presence in the midband, and they image like bandits. However, I think the de Capo would be a more satisfying speaker for most people over the long haul.
One thing that would help the Abby is a subwoofer or two, and not surprisingly they now make one for it called the Bailey. That doesn't help the high frequencies, though. A whizzer is no substitute for a real tweeter.
The de Capo is a speaker you can build a real high-end system around. My friend has done that, and with a sub and good room treatment he has a high end system that leaves little to be desired. In my opinion, in its unadorned form the Abby barely edges out of the "toy speaker" category. It looks great, and as I said above its sound has some grins, but I couldn't live with them as a main speaker.
IMO the Abbys are not as good an all-around speaker as the de Capo - they don't have as much extension top and bottom, they don't have the dynamic capability of the de Capo, and there are obvious resonances that the de Capo doesn't have. What the Abby does have is a wonderful sense of life and presence in the midband, and they image like bandits. However, I think the de Capo would be a more satisfying speaker for most people over the long haul.
One thing that would help the Abby is a subwoofer or two, and not surprisingly they now make one for it called the Bailey. That doesn't help the high frequencies, though. A whizzer is no substitute for a real tweeter.
The de Capo is a speaker you can build a real high-end system around. My friend has done that, and with a sub and good room treatment he has a high end system that leaves little to be desired. In my opinion, in its unadorned form the Abby barely edges out of the "toy speaker" category. It looks great, and as I said above its sound has some grins, but I couldn't live with them as a main speaker.