By the way, the Cary's input impedance is 150k ohms, the Joule's output is 350ohms, and I can't for the life of me find the Musical Fidelity's output in ohms.
Joule Electra 100 mkiii vs. Musical Fidelity A3cr
I have narrowed my preamp search down to one of these: Joule Electra 100 mkiii OR Musical Fidelity A3cr. One of these will be in front of a Cary V12i tube amp, and Maggie 1.6 speakers. I'm interested mostly in getting the widest/deepest soundstage with tube warmth. Your experienced opinions are much appreciated.