iFi Audio micro iDSD Black Label: Sound Quality First!" a review by earfonia on Head-Fi. - iFi audio
iFi Nano iDSD Black Label Review - Headfonia Audiophile Reviews
iFi iDSD Black Label: Swiss Army knife utility, top tier sound and flexibility that does everything extremely well, so much value it's just unfair to the competition – Audio Primate
Trans/portable high-end audio: iFi's micro iDSD Black Label | Darko.Audio