The Nagra BPS ticks all my boxes: MM or MC, adjustable gain, adjustable load with small cards not dip switches, battery powered and step-up transformers. It sounds neutral and huge with extremely deep and nuanced bass but somehow I didn't manage to get the same punch and drive than with the little Clearaudio Smart Phono (Version 1).
Clash of the gnomes.
Nagra BPS VS Clearaudio Smart Phono 1.
The winner is not the one you think.