Have pair of custom made output transformers by Bud Purvine's O'netics 600ohm:600ohm. Was recommended it over the vintage UTC A-20 which apparently are still great, but apparently smoothen the sound out a bit in comparison, hence losing some definition/microdetail.
Will fit them into the jkeny/WM8741 OPUS DAC combo. Which hopefully should help give some life and energy to the presentation!
So, anyone have any experience with direct output tranformer based DACs?