Etymotic ER4 SR/XR Noise-Isolating Earphones (Open Box) used The ATH-G1WL comes with a

The ATH-G1WL comes with a USB Type-A wireless transceiver (that plugs into compatible Mac and Windows computers)

captivating listening experience

Equipped with MMCX connectors and 4

making them the first over-ear DJ headphones to reproduce high-resolution sound from 5 Hz to 40 kHz

Etymotic ER4 SR/XR Noise-Isolating Earphones (Open Box) used The ATH-G1WL comes with aWhich ER4 is right for you? Both ER4 models, the ER4SR and ER4XR, use the same Balanced Armature (BA) drivers. The only difference is the tuning of the lower (bass) frequencies. The ER4SR, being the reference model, is tuned to be as precise and flat as possible. The ER4XR, being the fun model, is tuned with added bass. As you can see from the frequency response graphs below, ER4XR adds 1 2dB to the mid bass frequencies (below 200Hz) and 3 4dB to the