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SB Acoustics

SB Acoustics SB15SFCR39-8 5x8'' Paper Cone Racetrack Woofer

SB Acoustics SB15SFCR39-8 5x8'' Paper Cone Racetrack Woofer

Regular price Rs. 4,900.00
Regular price Sale price Rs. 4,900.00
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  • 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


  • nominal Impedance 8 Ω
  • DC resistance, Re 6.2 Ω
  • 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.

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