Audiophilepure

https://www.stereophile.com/content/stromtank-s-1000-computer-controlled-battery-power-source

One of the biggest revelations came when, during another listening session, I moved back and forth between the darTZeel NHB-18NS preamp and the Stromtank battery-powered D’Agostino Momentum HD preamp. I had previously declared the battery-powered darTZeel the most detailed and revealing preamp I’d ever heard in my system. With colors more direct and primary than the D’Agostino’s softer, more pastel-rich palette, and a soundstage neither as wide nor as far set back, the darTZeel seemed a champion of directness. With Stromtank battery power, the D’Agostino’s ability to convey detail increased to darTZeel levels, and its soundstage magic increased. I’d expected the Stromtank S 1000 to improve the sound of my system, but I never thought it would serve as the missing link to component greatness.

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