The ADEL-B1 Auto Module is designed to bring even more transparency and spaciousness to our IEMs and Earplugs. This is achieved by a single membrane design, which slightly reduces the bass and brings more spaciousness to the midrange and highs. The B1 module also reduces the occlusion effect (boom of your voice) even further to give singers and active wearers fatigue-free listening. Noise Isolation is -10db.
The ADEL-B1 Module DOES NOT fit into A-Series, U-Series earphones that contain the apex™ module socket.