Truthear ZERO RED vs CCA DUO Review – Battle of 2DD IEMs It has been nearly 1 year since the TRUTHEAR x Crinacle ZERO was introduced. And now a new collab version is showing, the TRUTHEAR x Crinacle ZERO RED, which was re-tuned based on a successful precursor. The ZERO RED houses a double dynamic driver configuration, 10mm and 7.8mm like the original ZERO. It adopts a dual polyurethane suspension composite liquid-crystal dome diaphragm dynamic driver with an N52 Rubidium … Continue reading Truthear ZERO RED vs CCA DUO Review