SB Acoustics SB15SFCR39-8 5x8'' Paper Cone Racetrack Woofer
Features
- Racetrack design
- Hard paper cone (made in-house)
- Optimized motor system
- Non-conductive reinforced vented coil former
- Symmetric suspension
- Low damping rubber surround
- Long life silver lead wires
- Vented chassis
Specifications
- nominal Impedance 8 ?
- DC resistance, Re 6.2 ?
- Voice coil inductance, Le 1.3 mH
- 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 0.94 T
- Magnet weight 0.54 kg
- Net weight 1.65 kg
- Free air resonance, Fs 32 Hz
- Sensitivity (2.83V/1m) 87.0 dB
- Mechanical Q-factor, Qms 7.11
- Electrical Q-factor, Qes 0.45
- Total Q-factor, Qts 0.42
- Moving mass incl. air,Mms 23 g
- Force factor, Bl 8.0 Tm
- Equivalent volume, Vas 48.3 liters
- Compliance, Cms 1.08 mm/N
- Mechanical loss, Rms 0.65 kg/s
- Rated power handling* 80 W
* IEC 268-5, T/S parameters measured on drive units that are broken in.
