I owned Due's for about a year, loved them ! They didn't have quite the power and dynamics in the mid's I love, but the combo of the range of the small sphere's with the CDT tweeter was great.
I had driven them with 22wpc tube integrated, and 35wpc hybrid integrated. Even tried them a tiny bit with 3.5watt 2A3 monoblocks. Didn't have them in long enough to really test them, but the combo produced enough volume to suit my taste. Supposedly 93db efficient, and I wouldn't necessarily argue.
Regarding break-in, they can be dry and recessed a bit for a while ( at least in my system). But they come out of the shell, and they were extended and airy up top, smooth down to about 70-75Hz(needs a sub). Again, not the best dynamics in midrange, but pretty great overall.
I ended up selling them recently, only because they were unused; I had hoped to put them in a second system (with the 22 watt tubed integrated), but the place was a 4-year old's playroom, so no go. Due's gone, and so will be the amp.
Good luck, hope this has helped....
Todd / chams_uk
I had driven them with 22wpc tube integrated, and 35wpc hybrid integrated. Even tried them a tiny bit with 3.5watt 2A3 monoblocks. Didn't have them in long enough to really test them, but the combo produced enough volume to suit my taste. Supposedly 93db efficient, and I wouldn't necessarily argue.
Regarding break-in, they can be dry and recessed a bit for a while ( at least in my system). But they come out of the shell, and they were extended and airy up top, smooth down to about 70-75Hz(needs a sub). Again, not the best dynamics in midrange, but pretty great overall.
I ended up selling them recently, only because they were unused; I had hoped to put them in a second system (with the 22 watt tubed integrated), but the place was a 4-year old's playroom, so no go. Due's gone, and so will be the amp.
Good luck, hope this has helped....
Todd / chams_uk