iFi iPurifier3 review: what's purer than pure? - Soundphile Review
iFi-audio Micro Series - iDAC, iUSBPower Peripherals - iPurifier, Mercury USB cable, and Gemini USB cable Review: Part II
Group Test: USB gadgets (AQ Jitterbug, Uptone Regen, iFi iUSB3.0, iPurifier, iPurifier2, UPDATE on p.15…) - DAC - Digital to Analog Conversion - Audiophile Style