Line Drive


Turbocharge your in-ear monitors. The UE Pro Line Drive enables consistent sound fidelity for Ultimate Ears in-ear monitors regardless of the audio source.

You design it

Design your custom in-ears to fit your style.

We make it

To your exact specifications.

Ships in 7 days*

We'll email you updates along the way. *Lead time subject to change.

A Line-Level signal buffer that can be connected to Line Outputs or Headphone Outputs. Line Drive is connected between the sound source and an in-ear monitor (IEM) and enables consistent audio fidelity. It guarantees the correct rendering of each IEM Sound Signature regardless of the audio source — whether plugged into a mixing console, personal monitoring system or any headphone output.

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