Etymotic ER2 SE/XR Noise-Isolating Earphones (Open Box) Model:ER2XR Extended Response providing confident gain with a

providing confident gain with a noise floor cloaked only in silence

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

Construction Minimum inductance and capacitance minZ™ (for minimum impedance) helix construction Conductors 14AWG total thickness Conductor material Heavy OFHC continuous cast copper silver matrix Insulation RoHS compliant super-soft (60P) HD polymer Shielding Intrinsic shielding provided by minZ™ helix construction AC spark insulation 1500V Connectors iFi 'FINAL' 4

The drivers are tuned in such a way to provide its users with a wider soundstage

Replacement headband for Final Audio Sonorous headphones

Etymotic ER2 SE/XR Noise-Isolating Earphones (Open Box) Model:ER2XR Extended Response providing confident gain with aWhich 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.