I think Luxman, maybe among others, experimented with transformer based volume controls. I have to say I've always been intrigued by using transformers either as volume controls or output buffers offering galvanic isolation and balanced outputs.
Buffer amp no gain
I would like to put a buffer stage between volume control and power amp to ensure impedance matching. I like the look of the First Watt B1 but don’t need the volume controls.
My volume control is a passive ladder type with expensive resistors, silver wired etc
So my question is, can I buy a buffer with phono inputs and outputs but no volume pots. Either valve or solid state is OK.