Sony XBA-3 Wired In Ear Monitors

XBA stands for “Experience Balanced Armature.” These are highly respected in ear monitors from Sony Japan. No longer being manufactured. They feature a three-way driver system consisting of a full range driver combined with separate tweeter and woofer drivers. The new Sony balanced armature drivers are one fourth the size of a standard 13.5mm driver, so three drivers can fit in a much smaller housing than conventional designs. The XBA-3 earpiece enclosure features a double-layered housing with an inner magnesium shell to hold the balanced armature drivers and an outer ABS shell to block and absorb unwanted vibrations.