er4b
(Etymotic)
The ER•4B is an ideal earphone for use with material that has not been equalized for loudspeaker playback. It was developed from the ER-1 earphone that is referenced to a flat diffuse field and used primarily for speech reception research, where the goal is to produce the same frequency response at the eardrum as would be produced in the live situation.
ER•4B (Binaural) earphones are for the binaural recording enthusiast. The ER•4B is an ideal earphone for use with material that has not been equalized for loudspeaker playback. It was developed from the ER-1 earphone that is referenced to a flat diffuse field and used primarily for speech reception research, where the goal is to produce the same frequency response at the eardrum as would be produced in the live situation.
FREQUENCY RESPONSE - 50 ~ 10 kHz +/- 2 dB -- 20 ~ 16 kHz +/- 4 dB
TRANSDUCER TYPE - Balanced Armature
1 kHz SENSITIVITY - 108 dB SPL for a .79v input
IMPEDANCE - 100 Ohms nominal
MAXIMUM OUTPUT - 122 dB SPL
CONTINUOUS INPUT - Maximum 3.0 Vrms
WEIGHT - less than 1 oz.
Etymotic Headphones
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