SB Acoustics SB15SFCR39-4 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 4 ?
- DC resistance, Re 3.5 ?
- Voice coil inductance, Le 0.88 mH
- Effective piston area, Sd 178 cm2
- Voice coil diameter 38.5 mm
- Voice coil height 17 mm
- Air gap height 6 mm
- Linear coil travel (p-p) 11 mm
- Magnetic flux density 0.94 T
- Magnet weight 0.54 kg
- Net weight 1.65 kg
- Free air resonance, Fs 31.5 Hz
- Sensitivity (2.83V/1m) 89.5 dB
- Mechanical Q-factor, Qms 7.9
- Electrical Q-factor, Qes 0.34
- Total Q-factor, Qts 0.33
- Moving mass incl. air,Mms 24 g
- Force factor, Bl 7.0 Tm
- Equivalent volume, Vas 47.8 liters
- Compliance, Cms 1.06 mm/N
- Mechanical loss, Rms 0.6 kg/s
- Rated power handling* 80 W
* IEC 268-5, T/S parameters measured on drive units that are broken in.
Frequently Asked Questions
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