SPM-43SP 4 Inch Midrange
- 0.76 INCH ROUND COPPER VOICE COIL
- 91 dB/SPL SENSITIVITY
- 30 WATT RMS
- 750 - 11000 Hz FREQUENCY RESPONSE
GENERAL SPECIFICATIONS
| Nominal diameter | 4 inch |
|---|---|
| Nominal impedance | 8 Ω |
| Magnet weight | 3 oz |
| Power rating | 15W RMS |
| Peak power | 30W |
| Sensitivity | 91 dB |
| Frequency range | 750~11000 Hz |
| Voice coil diameter | 0.76 inch |
| basket material | Steel |
| Magnet material | Ferrite |
| Coil material | Round Copper |
| Former material | Kapton |
| Cone material | Paper |
| Surround material | Paper |
SMALL SIGNAL PARAMETERS
| DC resistance(Re) | 7.2 |
|---|---|
| Resonance frequency(Fs) | 750 Hz |
| Moving mass(Mms) | |
| Compliance(Cms) | |
| Force factor(BL) | |
| Mechanical Q-factor(Qms) | |
| Electrical Q-factor(Qes) | |
| Total Q-factor(Qts) | |
| Equivalent air volume(Vas) | |
| Voice coil Inductance(Le) | |
| Diaphragm area(Sd) |
Frequency Response
Impedence Curve
Dimensions
