Important message to customer

Custom-fit products require ear impressions using Sensaphonics approved techniques.
Get the instructions for your audiologist ▸

221 single-ear stereo IEM, clear color
221 in-ear monitor being worn, side view
221 single-ear stereo IEM, clear color
221 in-ear monitor being worn, side view

221 Single-Ear Stereo Custom Earphone

$550.00 Save $0.00
-9 in stock

Sound Signature: full-range, accurate; true stereo within a single earpiece

Drivers: twin balanced armature drivers for full left/right in single earpiece

Designed specifically for music lovers with unilateral hearing loss (deaf in one ear), the 221 delivers full stereo signal to a single custom earpiece without sonic compromise. Works with any standard portable device, combining left and right acoustically within the ear canal without the sonic compromises inherent in passive electrical summing.

 

Features & Benefits

 

  • Designed for music lovers and audio professionals with unilateral hearing loss
  • Dual full-range drivers for true stereo within a single earpiece
  • Industry-leading isolation lowers noise floor for high-impact audio at safer volume
  • Flexible silicone earpieces maintain seal for full bass response
  • Permanently attached cable for low profile appearance
  • Comfortable silicone earpieces absorb shock, protect internal components from harm
  • Compatible with all popular portable audio devices (cellular, headphone amps, IEM systems, etc.)

Specifications

 

  • Frequency Response: 20 – 16,000 Hz
  • Impedance: 27 ohms nominal
  • Sensitivity: 100 dB-SPL (@ 0.1V)
  • Isolation: Up to 45.5 dB; broadband average 37 dB
  • Noise Reduction Rating: NRR 29 dB (single ear)
  • Supplied Accessories: hard-shell Pelican case with cleaning tool, 1/8” to ¼” adapter, shirt clip, and pocket storage pouch

Available Downloads

Explore these resources to help you how to safely and effectively use our products.

Custom IEMs User Guide (PDF) ▸

Musicians Tools for Better Hearing brochure (PDF) ▸

Custom Earphones for Personal Monitoring (PDF) ▸

Instructions For Getting Your Ear Impressions

To ensure the maximum protection and quality, our in-ear monitors are custom fit to your ear. After your order is placed, please follow these steps to ensure successful delivery of your custom-fit IEM.

1. Download our detailed impression instructions

Download and print our ear impression instructions. Take the instructions with you to your audiologist appointment. The impressions must meet these specifications.

2. SEE YOUR AUDIOLOGIST TO GET IMPRESSIONS FOR YOUR EAR

In order to get professional made ear impressions, you must schedule an appointment with an audiologist. View our list of approved audiologists or contact us.

3. SHIP US YOUR IMPRESSIONS AND ORDER RECEIPT

Ship the completed ear impressions (UPS/FedEx) and a receipt of your online order (or this order form) to:

Sensaphonics
660 N. Milwaukee Avenue
Chicago, IL 60642

We'll be in touch when your in-ear monitor is ready.