Product Details:
Payment & Shipping Terms:
|
| Other Name: | Bluetooth Speaker Driver | Diameter: | 40mm |
|---|---|---|---|
| Total Height: | 18mm | Resonance Freq: | 0.2~20KHz |
| Output S.P.L.: | 85±3dB | Rated Impedance: | 8ohm±15% |
| Highlight: | raw speaker drivers,mylar cone speaker |
||
40mm foam cone internal magnetic speaker driver for bluetooth speaker
Description:
Traditional speakers produce sound by using an electromagnet to move a flexible cone back and forth. They use drivers to help translate electrical signals into physical vibrations so that you can hear recorded sounds. A tweeter is the type of speaker driver that produces the highest range frequency. The other two main drivers are woofers and midrange.
Plastic (polypropylene) cones perform pretty well and their manufacturing uniformity is very high and inexpensive to produce. These cones have a major advantage in that they are highly damped and lossy. This means they can have a controlled break-up, which results in a smoother high frequency roll-off. Some people argue that plastic cones tend to not sound as snappy or lively as stiff paper cone counterparts. This can be attributed to an almost capacitive storage effect inherent in soft cone type drivers. However, if well engineered, a good, well damped plastic diaphragms can excel at midrange frequencies and at a fraction of the cost of producing a quality paper cone driver.
Specification:
| Item | Specification | Testing condition |
| Rated Impedance | 8Ω±15% | At 1kHz 1.0V |
| Resonance Freq. | 0.2~20KHz | Without baffle |
| Output S.P.L. | 85±3dB | At 600, 800, 1K, 1.2K |
| Response | FO.4000 Hz +/- 10dB | Output S.P.L. +/- 10dB |
| Input Power | Nominal Power: 0.25W | Maximum Input 0.5w |
| Buzzers & Rattles | Must be normal | Sin Wave 3.53V |
| Load test | Must be normal | 0.25W 100hours White Noise |
| Heat test | Must be normal | Keep 96 hours at 60+/- 2℃ 20-25% R.H. then removal back to normal temperature for 1 hour |
| Humidity test | Must be normal | 40℃+/-2℃ 90-95% R.H. 18hr |
| Cold test | Must be normal | -20℃+/-2℃ 90-95% R.H. 48hr |
| Distortion | <10% Maximum | Related Power Input 1000 Hz |
| Total flux | Maxwell | |
| Magnet | Ø18*H6 | |
| Voice coil size | Ø18 |
Dimension:
Contact Person: Mr. Roy Zhang
Tel: 86 574 55878090
Fax: 86-574-55878097
