Tortuga LDR1 Passive preamplifier

Using a cool contactless potentiometer... after my recent engagement with two sought-after passive, transformers-based preamps - i.e. Fidelity Research AS-1 and Luxman AT-3000's, both very musical and almost impossible to find, here maybe is an handy third millenium alternative.

Reportedly, transparency in spades at an affordable price-tag!