GEEK WOLD GK20 Review – 2DD+3BA+2 Piezoelectric Hybrid IEM Geek Wold’s latest budget IEM the GK20 comes with a 3-unit Balanced armature Driver, 2 units of Dynamic Driver, and a 2-unit piezoelectric driver hybrid configuration.   Driver Configuration 1. High-Resolution Composite 2BA (High frequency) 2. High-resolution Large size Full frequency BA (Medium frequency) 3. Composite 2-unit 8mm piezoelectric ceramic unit (extremely high frequency) 4. 8mm coaxial dual-cavity DD, LCP diaphragm DD+ Composite titanium diaphragm DD (low frequency) The G20 sports a … Continue reading GEEK WOLD GK20 Review