Ultimate Ears

Ultimate Ears Personal Reference Monitors

The ultimate custom in-ear monitor

For over 17 years we’ve been crafting the world’s finest custom in-ear monitors for discerning music listeners and industry pros. Traditionally, the “custom” in “custom in-ear monitors” refers to personally molded shells that fit you and only you. However, with the UE Personal Reference Monitors we’re taking customization to a whole new level.

As the world’s first personally tuned custom in-ear monitor, the UE Personal Reference Monitors are as much an accomplishment as they are a milestone; they represent the culmination of years of experience and know-how. Engineered to fit, look and sound exactly like you want them to, the UE Personal Reference Monitors were created to deliver an experience as personal as your passion for music.

Tech Specs

  • Input sensitivity: 107 dB @ 1 kHz, 1mW
  • Frequency response: 5 Hz – 22 kHz
  • Noise Isolation: -26 decibels of ambient stage noise.
  • Impedance: 31 Ohms@ 1 kHz
  • Internal speaker configuration: 6 balanced armatures and 4 passive crossovers.
  • Input connector: 1/8” headphone jack; compatible with all systems
  • Warranty: 1-year