“This is a review of Logitech/Ultimate Ears UE900s multi-driver in-ear monitors. http://www.ultimateears.com/en-us/900s The original UE900 was my first pair of hi-fi IEMs, the one which opened up my eyes and ears to higher quality multi-driver in-ear headphones. Though I have tested a lot of other headphones afterwards, in different dynamic/BA driver configurations, I still like to...” --twister6
Model - CK-820 Speaker Driver - 10 mm Impedance - 18ohm Sensitivity - 83dB±3dB Frequency Response - 20Hz-20000KHz Distortion Factor - ≤3% Input Plug - 3.5 mm Cable Length - 1.2 m
Ultimate Ears 350Vi - Headset - Binaural - Wired - Ear-Bud - 20 - 20000
Ultimate Ears 500vi Earphones
Ultimate ears 600vi noise-isolating headset features a microphone and on-cord controls for calls and music. it produces extended high-frequency response and a fuller soundstage.