Etymotic Research Tuberphone ER-2 specifications: Difference between revisions
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[[File:Etymotic_ER-2_Tuberphone_picture.png|thumb|Etymotic ER-2]] | |||
==Description== | |||
Etymotic ER-2 are insert ear-phones. | |||
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Etymotic ER-2 user guide[[https://www.interacoustics.com/images/research/pdf/ER-2%20data%20sheet.pdf]] | |||
Latest revision as of 12:16, 27 November 2023
Description
Etymotic ER-2 are insert ear-phones.
| Specification | Value |
|---|---|
| Bandwidth | 16 kHz |
| Isolation between ears | 70+ dB |
| External noise exclusion | 30+ dB |
| Ear coupling | Convenient with multiple eartip options |
| Diameter of sound-delivery tubes | Small, constant (1.35 mm ID x 2.16 mm OD) |
| 1 kHz Sensitivity | 100 dB SPL for 1.0 Volt (100 mW AC Drive; limits ±3 dB) |
| Impedance | 10 ohms, nominal (12 ohms at 100 Hz; 8 ohms at 20 kHz) |
| Safe Operating Limits | Maximum continuous sine wave drive: 2.5 V RMS |
| Maximum Peak Voltage | For 1% duty cycle: 20 Volts |
| Acoustic Polarity | + Electric (small pin) → + Acoustic |
Etymotic ER-2 user guide[[1]]