Professional Audio Solutions Since 1949 4 Inch (100 mm), 4 Ohm Water-Resistant Voice Range Speaker
Brand Name
MISCO OEM
Part #
4EAM
Built to Order
$64.65
A classic Oaktron 4 ohm 4" voice range speaker that provides ideal sound for mass transit audio systems and aerospace cabins. With a moisture-repellent cone treatment, this driver is capable of withstanding a variety of hazards within indoor environments while still delivering 91 dB efficiency and 20-watt power handling.
- Voice range speaker
- 4" (100 mm) aluminum basket driver
- 20 watts, 4 ohm, 91 dB SPL
- 0.75" copper voice coil, aluminum former
- Ferrite magnet, molded paper cone
- Moisture-repellent treatment
Download Product Specifications (PDF) »
| Brand Name | MISCO OEM |
|---|---|
| Speaker Type | Voice |
| Shape of Speaker | Square |
| Size, Nominal (inch & mm) | 4" (100 mm) |
| Environment | Indoor |
| Application | Aerospace, Transit, Voice Communications |
| RoHS Compliant | No |
| Rated Impedance (Ω) | 4 |
| Rated Power IEC268-5 (W) | 20 Watts |
| Program Power (W) | 20 |
| Sensitivity (dB SPL) ¹ | 91 |
| Frequency Range (Hz) | 300 - 6,000 |
| DC Resistance (Re) (Ω) | 3.6 |
| Resonant Frequency (Fs) (Hz) +/- 15% | 400 |
| Nominal Impedance (Z) (Ω) | 4 |
| Mechanical Q Factor (Qms) | 5.79 |
| Electrical Q Factor (Qes) | 3.65 |
| Total Q Factor (Qts) | 2.24 |
| Basket Type | Steel |
| Terminal Size (mm) | 4.8 x 0.5 |
| Voice Coil Diameter (mm) | 19.3 |
| Voice Coil Wire Material | Copper |
| Voice Coil Former Material | Aluminum |
| Magnet Material | Ferrite |
| Magnet Weight (g) | 85 |
| Cone Body Material | Molded paper fiber |
| Cone Surround Material | Molded paper fiber |
| Dust Cap Material | Molded paper fiber |
| Net Weight (kg) | 0.3 |
| Technical Notes | ¹ Sensitivity is measured with 2.83 volt input, measured on-axis at 1 meter distance |