The DIYHiFi Django AVC (Silk autoformers) I'm using is the best passive I've tried - including 3 transformer based units and a couple of "pots in a box" (built my 1st in '85). Does VERY little to the signal and is very flexible in its utility. It's a keeper!
Best Sounding Passive Preamp
What is the best sounding inexpensive passive preamp? I may have to send my preamp in for repair which could take a while and I don't want to be without music. My top priority is sound, but I don't want to spent a lot of money as I will be putting my preamp back in system upon return. Help please.