
SB Acoustics SB15SFCR39-8 5''X 8'' Paper Code Racetrack Woofer
Product Specifications
Nominal Impedance | 8 ohms |
DC resistence,Re | 6.2 ohms |
voice coil inductance,Le | 1.3 mH |
Free air resonance,Fs | 31 Hz |
Sensitivity(2.83V/1m) | 87 dB |
Mechanical Q-factor,Qms | 6.46 |
Electrical Q-factor,Qes | 0.46 |
Total Q-factor,Qts | 0.42 |
Moving mass incl. air,Mms | 23.2 g |
Force factor,BI | 7.9 Tm |
Equivalent, Vas | 51 lts |
Compliance,Cms | 1.13 mm/n |
Mechanical loss, Rms | 0.7 Kg/s |
Rated power handling* | 80 W |
Effective piston area,Sd | 178 cm² |
Voice coil diameter | 38.5 mm |
Voice coil height | 16 mm |
Air gap height | 6 mm |
Linear coil travel(p-p) | 10 mm |
Magnetic flux density | 0.86 T |
Magnetic weight | 0.54 Kg |
Net weight | 1.65 Kg |
Suggested Box Alignments:
- 0.5 - 0.7 cf sealed for an F3 of 58Hz
- 0.7 cf with 2" dia. x 7" long port for an F3 of 42Hz
- 1.0 cf with 2" dia. x 6" long port for an F3 of 39Hz
With Matching passive radiator
- 0.6 cf for an F3 of 49Hz
- 0.8 cf for an F3 of 45Hz
- 1.0 cf for an F3 of 43Hz
- 1.2 cf for an F3 of 42Hz