Etymotic Research mk5 Isolator Earphones Review

December 11, 2018

My favorite feature of these earphones is the high noise isolation and relatively accurate sound reproduction. Etymotic Research also offers the more expensive ER4 earphones, which presumably sound quite a bit better ($350 vs $65). I like the mk5s for running and general listening. They are easy to drive from a smartphone or laptop. At $65, if they get lost or stolen not that big of a deal. I've had mine for over 3 years and they're still going strong.

Specs are as follows:

Frequency Response: 20 Hz - 15 kHz
Accuracy Score: 85%
Transducers: High-output 6-mm neodymium moving coil drivers
Noise Isolation: 35 - 42 dB
Impedance (@1kHz): 32 Ohms
Sensitivity (@1 kHz) SPL at 0.1v: 95 dB
Maximum Output (SPL): 120 dB
Cable: 4 ft
Warranty: 1 Year


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