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
IFi Audio Nano IDSD BL - A Nano Mojo? • Music For The Masses
iFi audio nano iDSD Black Label - Reviews | Headphone Reviews and Discussion - Head-Fi.org
iFi Micro iDSD Signature review: Swiss Army knife of headphone audio 2.0 – Audio Primate