Moondrop Venus Headphones - Open Box100mm Sub Nanometer Diaphragm Dynamic Driver The larger vibration delivers stronger dynamics, the thin diaphragm responds to finer details. Thats why Venus adopts a diaphragm with a diameter of 100mm and a thickness of only 2 microns, and its printed circuit on the diaphragm is made of 1um pure silver. And the pure silver etched circuit results in lower heat loss. N52 Magnet Array & Secondary Diaphragm Stress Balance Technology Venus features an array