I have no personal experience with the Sanders Magtech amps (other than reputation), but they are manufactured by CODA, and that is never a bad scenario
Tubes and less sensitive speakers
I love the sound of tube amps but I use Maggie 3.7's. I have tried an 45 watt tube amp and while I loved the clarity of midrange, I missed the low end slam, even with a sub. Is there a tube amp out there that matches well with Magnepans? I am using the Hegel H360 and a friend recommended Coda high current amps but I still am thinking tubes.