Professional Audio Solutions Since 1949 4 Inch, Wide Range, Flame Retardant Aerospace Speaker
Brand Name
MISCO OEM
Part #
EN4FR-1000A
In stock
$82.94
This ultra-lightweight, flame-retardant speaker is designed for a 70-volt paging system in aircraft. Rather than a heavy transformer, the design utilizes a high-impedance voice coil along with resistors to allow multiple power taps. It's an ideal solution for high-intelligibility communications and in applications where weight and space must be minimized.
- 4, 2, 1, and ½ Watt taps for 70.7V system
- Maximum Energy (ME) neodymium magnet
- Flame-retardant (FR) cone
- Aluminum VC form
- 8 Watts, Program Power
Download Product Specifications (PDF) »
| Brand Name | MISCO OEM |
|---|---|
| Speaker Type | Wide Range |
| Shape of Speaker | Square |
| Size, Nominal (inch & mm) | 4" (100 mm) |
| Environment | Indoor |
| Application | Aerospace, Voice Communications |
| RoHS Compliant | No |
| Rated Impedance (Ω) | 1075 |
| Rated Power IEC268-5 (W) | 4 Watts |
| Program Power (W) | 8 |
| Sensitivity (dB SPL) ¹ | 90 |
| Frequency Range (Hz) | 200 - 6,000 |
| DC Resistance (Re) (Ω) | 1075 |
| Resonant Frequency (Fs) (Hz) +/- 15% | 250 |
| Nominal Impedance (Z) (Ω) | 1000 |
| Voice Coil Inductance (Le) (mH) | 0 |
| Total Q Factor (Qts) | 0.83 |
| Basket Type | Stamped Aluminum, powder coat black |
| Terminal Size (mm) | 2.8 mm x 0.5 mm |
| Voice Coil Diameter (mm) | 20.3 |
| Voice Coil Wire Material | Copper |
| Voice Coil Former Material | Aluminium |
| Magnet Material | Neodymium |
| Magnet Weight (g) | 12 |
| Cone Body Material | Flame Retardant Paper |
| Cone Surround Material | Flame Retardant Paper |
| Spider Material | Flame Retardant cloth |
| Dust Cap Material | Flame Retardant Paper |
| Technical Notes | ¹ Sensitivity is measured with 2.83 volt input, measured on-axis at 1 meter distance |