From 1990 until 2014 I owned SMGa, 1.7 QR, and 3.7R. What I loved most was the ribbon tweeter in the 3.7. In my experience, no other tweeter can touch it in terms of extension while remaining utterly sweet.
Overall the 3.7s were great speakers. I moved on because of placement problems-- they are not easy to integrate into many rooms-- and due to amplification requirements. I know there are those who drive Maggies with tube amps, but in my estimation they are designed for solid state. Maybe I could have gotten what I wanted from a big Pass Labs amp, but they ain't cheap. I'm locked into high impedance high efficiency designs at this point. But I sure to miss those ribbons!
Overall the 3.7s were great speakers. I moved on because of placement problems-- they are not easy to integrate into many rooms-- and due to amplification requirements. I know there are those who drive Maggies with tube amps, but in my estimation they are designed for solid state. Maybe I could have gotten what I wanted from a big Pass Labs amp, but they ain't cheap. I'm locked into high impedance high efficiency designs at this point. But I sure to miss those ribbons!