Etymotic ER4 SR
ER4SR is Etymotic’s reference hi-fidelity in-ear monitor, for those who demand nothing less than the highest reproduction accuracy. The ER4SR right and left channels are matched within an industry-leading 1dB across frequencies from 100 Hz to 10 kHz.
ER4SR is Etymotic’s reference hi-fidelity in-ear monitor, for those who demand nothing less than the highest reproduction accuracy. The ER4SR right and left channels are matched within an industry-leading 1dB across frequencies from 100 Hz to 10 kHz.
ER4SR is Etymotic’s reference hi-fidelity in-ear monitor, for those who demand nothing less than the highest reproduction accuracy. The ER4SR right and left channels are matched within an industry-leading 1dB across frequencies from 100 Hz to 10 kHz.