Specifications - Etymotic Research Isolator ER-6 User Manual

Frequency response: 20 Hz to 16 kHz ±4 dB
Acoustic polarity: +electrical = +acoustic
Transducer type: Balanced armature
1 kHz sensitivity (ER-4B/ER-4S): 108 dB SPL for a 1.0 volt input
1 kHz sensitivity (ER-4P): 108 dB SPL for a 0.25V input
Impedance (ER-4B/ER-4S): 100 Ohms nominal
Impedance (ER-4P): 27 Ohms nominal
Maximum output: 122 dB SPL
Maximum continuous input (ER-4B/ER-4S): 3.0 Vrms
Maximum continuous input (ER-4P): 0.75 Vrms
Weight: Less than 1 oz.
Cable: 5' with 3.5 mm stereo plug
20
15
10
5
0
-5
-10
10
This graph shows the relative real-ear response (diffuse-field-referenced eardrum pressure
response) of the ER-4B, ER-4S, and ER-4P earphones.These are equalized for binaural manikin
recordings (4B), normal stereo recordings (4S), and higher output with portable players (4P).
ABOUT ET YMOTIC RESEARCH SPECIFIC ATIONS
RESPONSE OF ER-4 EARPHONES
100
ER-4P
ER-4B
ER-4S
1000
Frequency (Hz)
12
10000
1000