I've tried an AVC incorporating Slagle's parts. It sounded dead quiet but my system needs a bit more boost and I like the coloration added by my 6SN7 tube.
Is an autoformer (AVC) always superior to pots and resistors ?
This is an argument some of my friends made to me. AVC is always the best volume control, better than anything else such as rk50 or resistor based volume controls. Have you found this to be the case?
I am also curious why AVC is not implemented more often in high end audio preamps / integrated amps.