We developed the Ultimate Ears 18 Pro Custom In-Ear Monitors specifically for the most discerning performers and music listeners. If you demand nothing but the best, our flagship in-ear monitors deliver the comfort, quality, and sound that you expect. They combine our new experience-driven, six-speaker Ultimate Ears sound signature with new technologies including a new cable built for durability and reduced distortion, three acoustically tuned sound channels, and multiple passive crossover points creating the ultimate in separation, detail, and clarity.
Input sensitivity: 115 dB @ 1 kHz, 1mW
Frequency response: 5 Hz – 22 kHz
Noise Isolation: -26 decibels of ambient stage noise.
Impedance: 21 Ohms@ 1 kHz
Internal speaker configuration: 6 balanced armatures and 4 passive crossovers.
Input connector: 1/8” headphone jack; compatible with all systems