The FIBAE 7 is a phenomenal sounding iem that is able to provide a natural bass display, exciting midrange and detailed yet smooth treble. There is an engaging yet controlled sound. The FIBAE 7 is able to achieve a spot on balance of technicality and musicality. In addition, it has exceptional resin shells and it comes with Null Audio Arete OCC Copper upgrade cable. The Custom Art FIBAE 7 is an excellent flagship from Custom Art with its highly musical sound that leaves little to be desired.