Oaktree Products
The leading provider of clinical supplies to the hearing care industry
- Home
-
Shop
- Assistive Devices
- Cerumen Management
- Clinical Tools & Supplies
-
Diagnostic Equipment & Supplies
Diagnostic Equipment & Supplies
- ABR & OAE Systems
- Air, Bone & Insert Earphones
- Audiograms & Forms
- Audiometers
- Auditory Test Recordings
- Balance Supplies
- Electrodes & Supplies
- Hearing Instrument Programming & Test Box
- Infant Screening Supplies
- Recording Paper
- REM Systems & Probe Tubes
- Tympanometers, Printers & Parts
- Tuning Forks
- Misc Parts & Supplies
- VRA & E-CPA
- Eartips
- Fitting Supplies
- Hearing Conservation
- Impression Materials
- Infection Control
- Mobile Audiology
- Office & Educational Items
- Otoscopes & Headlamps
- Resale Accessories
- Specials
- EQUIPMENT
- Request
- Resources
- MEDIA
- About
- Home>
- Madsen Otometrics>
- Diagnostic Equipment & Supplies>
- Air, Bone & Insert Earphones>
- Insert Earphones>
- Etymotic Research 3C Insert Earphones (50 Ohm)
Etymotic Research 3C Insert Earphones (50 Ohm)
Product Code: ER3C-50
- 50 ohm
- 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
- Uses E-A-RLink insert eartips
- Also available in 10 ohm
- Check out alternative Insert Earphone option, item #OT-02-500
NOTE: This is a special order item and may incur additional lead time
- ER•3C earphones (50 Ohm)
- 7’ cable with dual-mono 6.33mm (1/4”) plugs
- (20) regular foam eartips (13mm)
- (20) small foam eartips (10mm)
- (2) large foam eartips (18mm)
- Hook-and-loop neck strap
- Replacement Sound Tubes with Adapters, 4/pack (item# ER3-21)
- Replacement Tube Sockets (nipples, adapters) 10/pack (item #420-2081)
- Etymotic Research Replacement Cable for ER3C Insert Earphones, dual-mono 6.33mm plugs (item #ER3C-84)
- E-A-RLink 3A Eartips, yellow, 50/bag (#420-2004)
- E-A-RLink 3A Eartips, yellow, 350/bag (#420-3505)
- E-A-RLink 3A Eartips, yellow, 750/bag (#420-2005)
- E-A-RLink 3B Eartips, beige, 50/bag (#420-2006)
- E-A-RLink 3B Eartips, beige, 350/bag (#420-3507)
- E-A-RLink 3B Eartips, beige, 750/bag (#420-2007)
- E-A-RLink 3C Jumbo Eartips, yellow, 24/bag (#420-2028)
- E-A-RLink Infant Eartips, 3.5mm, 20/bag (#420-2094)
- E-A-RLink Infant Eartips, 4mm, 20/bag (#420-2095)
- Audiologist's Choice Infant Eartips, 3.5mm, 25/bag (#JSMET35)
- Audiologist's Choice Infant Eartips, 4mm, 25/bag (#JSMET40)
- Etymotic Gold-Wrapped Tip Trodes, 13mm, 20/bag (#ER3-26A)
- Etymotic Gold-Wrapped Tip Trodes, 10mm, 20/bag (#ER3-26B)