TRI HBB KAI vs Truthear Crinacle ZERO TRI KAI The TRI Kai comes with a 3rd generation 9.8mm DLC (Diamond-like coating) dynamic driver. The shell of KAI is made of aviation-grade 7 series aluminum alloy and has adopted the five-axis CNC process for a better-curved surface and is highly polished. As the model name suggests KAI is a collaboration unit between Youtuber Hawaiian Bad Boy and TRI Audio. What is this mean? The IEM is tuned by him and made … Continue reading TRI HBB KAI vs Truthear Crinacle ZERO