86-134-18732810
610, Bldg. A, Zhihui Innovation Center, Qianjin Rd. 2, Xixiang St., Baoan Area, Shenzhen, Guangdong, China (Mainland)
2018 Updated Earphone Accessories DCR 4 Balanced Armature Receivers For Earphones In Ear Monitor
After a lot of testing and clients feedback, you can use those series product to replace knowles or sonion related product.Still facing the trouble of product price and delivery time, let us to be your
honest dealer,we will give you a surprise !
| Estron Transducer | Knowles Transducer | Sonion Transducer |
| ESC330 Series | FH Series | N/A |
| ESC370 Series | HC Series | 2600 Series |
| ESC530 Sereis | ED Series | 2300 Series |
| ESC230 Series | FJ Series | N/A |
| ESC210 Series | TWFK Series | N/A |
| ESC305 Sereis | WBFK Series | N/A |
Product Description
Miniature balanced-armature receiver with magnetic-radiation shielding for use in ITE (In The Ear) , BTE (Behind the Ear) applications with standard response. This transducer can also play an excellent role as a woofer / wide-band driver in commercial hearing products.
Product Feature
- Perfect package size for ITE, BTE applications
- Outstanding efficiency
- Substantial maximum output
- Magnetic-radiation shielded
- Optimized mechanical shock resistance
- Water resisted
Mechanical Data
Weight: 0.24 g
Mechanical dimension:please refer to the drawing below
Test condition
- Acoustic tubing: 10.0 mm of 1.0 mm diameter tubing
- Acoustic coupler: IEC711 coupler (volume of 2cc)
- Constant voltage drive: 0.065 V RMS
- Environment: 23 ℃ , RH 50%
Acoustic Parameter I
Test Item | Nominal | Tolerance | Comments | |
Sensitivity (dB) | @ 200Hz | 119.0 | +/- 3.0 |
|
| @ 500Hz | 119.5 | +/- 3.0 |
|
| @ 1000Hz | 121.5 | +/- 3.0 |
|
Peak 1 | Frequency (Hz) | 2100 | +/- 350 |
|
| SPL (dB) | 133.0 | +/- 3.0 |
|
Peak 2 | Frequency (Hz) | 4300 | +/- 500 |
|
| SPL (dB) | 131.0 | +/- 3.0 |
|
Maximum output @ peak frequency (dB) | 136 | N/A | THD<10% | |
Acoustic Parameter II
Test Item | Nominal | Comments | |
THD (%) | @ 1/2 1st peak | < 3.0 |
|
@ 1/3 1st peak | < 5.0 |
| |
@ 500 Hz | < 3.0 | ||
Electric Parameter
Test Item | Nominal | Tolerance | Comments | |
Impedance (ohm) | @ 500Hz | 7.5 | +/- 15% |
|
@ 1000Hz | 11.0 | +/- 15% |
| |
DCR (ohm) | 3.4 | +/- 10% | ||
Nominal Frequency Response Curve
Packaging:
1.With a foam box packaging second;
2.Then use carton packaging.
- Package: PET bubble pack, 2 pc per bubble, 200pcs per pack
- Storage temperature range: -40℃ ~ 60℃
- Storage humidity range: < 60%
Shipping:
We use large international logistics companies, such as EMS,DHL,FedEx,TNT,UPS, Whose logistics services guaranteed to provide the waybill number, tracking cargo information at any time.
Shipping Note
1) We will ship all your order within 3-7 working days after receiving your payment. Otherwise, we will state it in the invoice in advance.
2) The buyer is responsible for all the shipping fee incurred.
3) Address Details,We only ship to the confirmed address provided.
4) For international orders, all additional local taxes, duties, GST, tariffs and fees should be customers' (your) responsibilities.
5) Our quotations are FOB prices; we do not responsible for destination countries customs clearance.
6) We are not responsible for any accidents, delays or other issues that are the responsibility of the shipping service. If you do not receive your item on time, please contact us immediately for further assistance.
Shenzhen Estron Technology Co., Ltd. is a professional miniature electro-acoustic component manufacturer. Estron's vision is always pursuing technique excellence in order to assist all customers from all over the world optimizing their products & services. ... View detail
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Basic Information
Business Type: Manufacturer and Factory and Trading Company
Main Products:
Factory Information and Photos
Pre-Sale Service:
Professional technical staff will choose and check suitable receivers and good quality earphones for you.
The Sale of Services:
If you need, we can provide the samples for you to go on testing, and also provide technical help and supports for you.
After-Sales Service: Repair and Resend.
The buyers are responsible to conduct a test on the parts before mounting .
if there are some products are wrong, we will provide technology help at first , they still can not work,we will provide refund or resend for those part item.
A formal test report or a detailed description of the nature of defect is required. Without an emailed or faxed “Return Material Authorization (RMA)”.the buyer shall not return the products , and we will not refund or resend.
For our new client the payment term is payment in advance. Net terms for regular customers are not a problem. Working with us is totally safe for you.
At this moment we accept the following payment methods:
1) Bank Transfer (T/T, Wire Transfer)
2) Western Union
3) PayPal and so on.
Payment methods depend on amount.
