ER3C ABR Sound Delivery Tubes (ER3-21ABR, 3 pair/pack)

$57.50

SKU

NS8136

ABR Sound Delivery Tubes (ER3-21ABR) incl. coupler for ER3C Tubal Inserts Earphones. 25.2cm tube length. For connecting standard Etymotic Foam Eartips to the ER3C tubal insert earphones. 3 ABR Sound Delivery Tubes pairs per pack (red and blue).

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Details

ABR Sound Delivery Tubes (ER3-21ABR) for use in ABR (Auditory Brainstem Response) applications. These tubes come with the necessary coupler for ER3C tubal insert earphones and standard Etymotic Foam Eartips. The sound delivery tube is 25.2cm in length and has a constant diameter of 1.35 mm ID × 2.9 mm OD. Six ER3C ABR Sound Delivery Tubes per pack (three red and three blue). The color-coding is for easy binaural identification of the left (blue) and right (red) ear.

ABR Sound Delivery Tubes are used to connect standard Etymotic foam tips to the ER3C tubal insert earphone.

Technical Specifications

Compatibility: ER3C tubal insert earphones
Application: ABR (Auditory Brainstem Response)
Tube length (without coupler): 25.2mm
Inner diameter: 1.35mm
Outer diameter: 2.9mm
Material: Polyurethane
Packaging: 6 coupler tubes (red and blue, 3 pairs) including coupler for ER3C

Application Note

Caution: Do not cut the sound tube. A change of 10 mm in the length of the sound tube will change the frequency response by 0.5 dB at some frequencies.