The Ultimate Ears 11 Pro combines a quad armature speaker configuration with a three-way crossover – an industry first. The UE 11 Pro features a dual driver subwoofer that tightly and fully details the lows, a dedicated driver for the mid range that is dynamic and clean and a tweeter that produces crystal clear highs. The result is a total acoustic immersion that conveys every detail and emotional nuance to the listener.

Tech Specs
Input sensitivity: 119 dB @ 1 kHz, 1mW
Frequency response: 5 Hz – 22 kHz
Noise Isolation: -26 decibels of ambient stage noise.
Impedance: 18 Ohms@ 1 kHz
Internal speaker configuration: 4 proprietary balanced armatures with a 3-way crossover.
Input connector: 1/8” headphone jack; compatible with all systems
Warranty: 1-year