Change currency:

Tel: 020 8772 2700

ER•3C Insert Earphones

ER•3C™ earphones are the next generation of insert earphones, replacing ER•3A earphones, which have been the worldwide standard for audiometric insert earphones since 1985.

The frequency response and performance characteristics of ER•3C earphones are virtually identical to the original ER•3A earphones at all audiometric frequencies.

10 Ohm or 50 Ohm model available.
SKU: ER3C/10
Retail Price: Excl. VAT: £305.00 Incl. VAT: £366.00

Availability: In stock (7)


Just spend over £50 for free delivery to standard UK addresses (T&Cs apply). Otherwise standard UK shipping costs are Royal Mail £4.15or 24 hour c



To alert us to a problem with a delivery please call +44 20 8772 2700 or email sales@pcwerth.co.uk.


•Incorporates "touch-proof" electrical connection for safety

•Duplicates ER•3A smooth frequency response

•Provides 30+ dB external noise exclusion – equivalent to a single-wall booth when used with deeply-sealed foam eartips

•Provides 70+ dB isolation (interaural attenuation) between ears; reduces the need for masking

•Reduces test/retest variability compared to supra-aural earphones

•Eliminates test errors due to collapsed ear canals

•Simplifies RECD (Real-Ear-to-Coupler-Difference) measurements

•May be calibrated in a 2-cc coupler, occluded ear simulator, or 0.4-cc coupler

    System Includes

    •ER•3C earphones (10 Ohm or 50 Ohm)

    •7' cable with dual-mono 6.33 mm (1/4") plugs

    •20 foam eartips (regular, 13 mm)

    •20 foam eartips (small, 10 mm)

    •2 foam eartips (large, 18 mm)

    •Hook-and-loop neck strap


  • e: sales@pcwerth.co.uk
  • t: 020 8772 2700
  • f: 020 8772 2701
  • IntriCon UK Ltd
  • trading as PC Werth
  • Richardson House
  • Boundary Business Court
  • Church Road
  • London CR4 3TD
  • Registered England No.09845997
  • View Map

Find us on: