64 Audio A4s Custom In-Ear Monitor xlr-4 male plus the connectivity suite at

plus the connectivity suite at either end of the device

make deep bass

such as listening to music with one ear while cooking

This new low-latency XMOS microcontroller has greatly enhanced processing power

Treble extension

64 Audio A4s Custom In-Ear Monitor xlr-4 male plus the connectivity suite atA4s 64 Audio is proud to introduce our newest four driver custom in ear monitor, A4s. This complete redesign of our four driver platform is elevated by the Dynamic low frequency driver, making this 64 Audios second hybrid custom IEM. Along with that major update, inside A4s is our Tia technology, LID and our patented Apex and 3Dfit tech. While this is targeted at musicians looking for a rich enveloping monitoring experience, the frequency response,