Hello, 883dave,
I also have the SF power 3 for over 2 years; yet it blew twice the resistor already.
May I ask how reliable of yours is and do you plan to replace them; if yes, with what?
I am driving a pair of Maggie 3.6 with the SF and the front ends are the Linn LP12, Tentlabs CD player via a VAC preamp.
The sound is great and sounds real to me.
Please advice
Robert