7Hz Salnotes Zero The Salnotes Zero is the second IEM after Dioko from the sub-brand of 7Hz. It comes with a 10mm dynamic driver with a metal composite diaphragm, utilizing technology exclusively developed by 7Hz. The metallic composite diaphragm used in this product is made of high-quality materials. 7Hz Salnotes Zero is housed in an environment-friendly plastic shell with a stainless steel faceplate. It comes with a detachable cable. The cable is made of 4 core high purity Oxygen Free … Continue reading 7Hz Salnotes Zero vs QKZ x HBB Review