Offer valid June 1, 2017 through June 30, 2017. Not valid with other offers or discounts.
The ER•1 was designed to imitate the normal resonance of the open ear, and is used for speech audiometry where the goal is to reproduce the same frequency response at the eardrum for speech as would be produced in the live situation.System Includes
|Sensitivity (@1 kHz) SPL at 0.1v||105 dB SPL for 1V rms drive|
|Impedance (@1kHz)||10 Ohms nominal|
|Acoustic Polarity||+Electrical = + Acoustic|
Package of 4 adapters
OD: 0.1" (2.5 mm)
ID: 0.53" (1.35 mm)