For ABR (Auditory Brainstem Response)
Etymotic's ABR-version insert earphones are available only from ABR equipment
manufacturers because they may require special connectors and other proprietary
modifications. Available in 10 Ohm, 50 Ohm and 300 Ohm immittance. Contact your
ABR equipment manufacturer for more details.
Additional Specifications for ABR version
1 kHz sensitivity: 103.5 dB SPL in HA-2 Coupler @ 0.49V rms (300 Ohms)
||Typical click response of TDH-49 and ER•3A to 1V, 100usec clicks as measured on
ear simulator in KEMAR manikin.