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. Tripowin Zonie is always regarded as the most popular budget upgrade cable for IEMs. But it's not long enough to fit for more complex setups where the audio source is positioned farther away.