Caliper Signature vs Duetta Signature?

Hi guys,

Just a quick question regarding the difference between these two Apogee models.

I know that a lot of folks regard the Duetta Signatures as the next best thing to a pair of Divas, but I'm having a hard time determining the difference between the Duetta and Caliper.

Is the Duetta bigger?

What is a reasonable price for a pair of Calipers in excellent condition?

Thanks for your help!
I know you are selling your Calipers, but the photos look like you did not biwire them (unless those are shotgunned wires). Biwiring the Calipers really makes them open up. Also, the Caliper and Duetta Signatures have a plastic screen over the bass ribbons, which go a long way to protecting them from inquisitive fingers. The Duetta Signatures and the Divas can also be screwed into the floor, so they can't be easily knocked over by toddlers.
I also have utilized the Calipers and the Maggie 1.6QR's as main speakers and concur that although the Calipers are incomparable in bass power and dynamics, the Maggie is more neutral, more coherent throughout and superior in the higher registers. A Vandersteen 2WQ added to the Maggies almost makes up for the difference in the bass.
Thanks guys,

I am bi-wiring them with an "internal bi-wire" pair of cables. I was told that it does make a big difference. The binding posts were also upgraded to all copper too.

All I know is that they sound amazing. Not the best I've ever heard, but certainly a very unique sound and extremely easy to listen to.

Somebody is going to be very happy to take these home, provided that their amp is up to the task. Did I mention that my Classe gets hot? Baby, does it get hot!
Back in the day. I used a pair of caliper's. It still remains one of the best sounding speakers I've owned. Big but, controlled and dimensional sound. I had great success running them with a pair of levension 20.5 monos and Mit speaker, and interconnects (shotguns) Also the addition of a sub really helped. Back then a Velodyne UDL 15 did the trick nicely.Good luck. As I'm writing this I think back on just how nice that system sounded, And why did I find it necessary to change anyway? It worked!
I owned a pair of calipers's a few years back used them with a Kerll KSA100 amp and a Krell PAM 3 pre with many many speaker cables. I never could get them to sound good I tried many interconnects and speaker cables and could not find a good match for them. I had a smaller room so this may have been the bigger part of My problem. I loved the look of them and so wished I could of found a way to make them work in My room but no so I sold them good luck with them . Marc