SB Acoustics SB12MNRX25-4 4'' Midrange
Product Specifications
| Nominal Impedance | 4 ohms |
| DC resistence,Re | 3.2 ohms |
| voice coil inductance,Le | 0.14 mH |
| Free air resonance,Fs | 58 Hz |
| Sensitivity(2.83V/1m) | 88.5 dB |
| Mechanical Q-factor,Qms | 3.6 |
| Electrical Q-factor,Qes | 0.42 |
| Total Q-factor,Qts | 0.37 |
| Moving mass incl. air,Mms | 4.9 g |
| Force factor,BI | 3.7 Tm |
| Equivalent volume,Vas | 5.5 liters |
| Compliance,Cms | 1.55 mm/N |
| Mechanical loss,Rms | 0.5 Kg/s |
| Rated power handling* | 50W |
| Effective piston area,Sd | 50 cm² |
| Voice coil diameter | 25.4 mm |
| Voice coil height | 9.5 mm |
| Air gap height | 5 mm |
| Linear coil travel(p-p) | 4.5 mm |
| Magnetic flux density | 0.9 T |
| Magnetic weight | 0.4 Kg |
| Net weight | 0.85 Kg |
Frequency and Impedance Graph:
Drawing:
