Tweeking my Mytek Brooklyn DAC

I recently purchased a Teradek linear power supply ($300 12v 6.5 amp). I purchased it knowing that I could use it with either my Mytek or my Google fiber internet router. The first time I connected the Teradek (with the included power cord) to my Brooklyn, I was unimpressed; but an audio buddy suggested that I give it a second shot with one of my Shunyata Black Mamba power cords. That combination hit it out of the park. cymbals, bushes and high hats all sounded more natural and other details in the music became more apparent without brightness. Actually the Teradek/Mamba combination added a touch of warmth to the Brooklyn which was appreciated.