Today I’m here to talk to you about KZ iems. You might already know the brand Knowledge Zenith as one of the primary budget IEM maker from China, made popular mainly by the KZ ATE. Well the model that I have today for reviewing is the KZ ZS5, technically the version 2 from what I read about the sound signature. This is a quad driver per earbud: two dynamic drivers and two balanced armatures, which technically should offer a really good sound on a budget. They also have detachable cables which should improve on the durability.