Arete utilizes every driver fully in the 1DD+4BA configuration. Classic American Knowles drivers were selected for midrange and treble, while a new biocellulose diaphragm dynamic driver was chosen to deliver a powerful bass. Aretes tuning was made possible by an intricate 3-way electronic crossover system, along with three independent acoustic sound tubes per side. After times of design and discussion, here we have this portable iem hard case.