Etymotic ER2 SE/XR Noise-Isolating Earphones (Open Box) Model:ER2XR Extended Response Quick start Guide

Quick start Guide

Specifications and appearance are subject to change without notice for product improvement

providing confident gain with a noise floor cloaked only in silence

These two hi-fi accessories are contained by an attractive genuine leather tie

without any connected computer

Etymotic ER2 SE/XR Noise-Isolating Earphones (Open Box) Model:ER2XR Extended Response Quick start GuideWhich ER2 is right for you? Both ER2 models, the ER2SE and ER2XR, use the same low impedance dynamic drivers. That means they are easy to drive, and no amplifier is required. The only difference between the 2 models is the tuning of the lower (bass) frequencies. The Studio Edition ER2SE is tuned to have a flat frequency response. The eXtended Response ER2XR is tuned to have an emphasized bass, adding 1 2dB to the mid bass and 3 4dB to the sub bass.