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8″ SB20FRPC30-8 - SB acoustics

  • 8″ SB20FRPC30-8 - SB acoustics
  • 8″ SB20FRPC30-8 - SB acoustics
  • 8″ SB20FRPC30-8 - SB acoustics
NAME: 8″ SB20FRPC30-8 - SB acoustics
PRICE: USD62.40
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Features

  • Proprietary cone material with natural fibers made in-house
  • Light weight foam surround
  • Optimized whizzer cone for smooth high frequency extension
  • Phase plug for controlled radiation
  • Large spider for improved linearity
  • Optimized motor system
  • Vented reinforced plastic chassis
  • Non-conductive coil former
  • Long life lead wires
  • Extended copper sleeve on pole piece

 

Specs

  • Nominal Impedance 8 Ω
  • DC resistance, Re 6.0 Ω
  • Voice coil inductance, Le 0.22 mH
  • Effective piston area, Sd 216 cm2
  • Voice coil diameter 30.5 mm
  • Voice coil height 13.2 mm
  • Air gap height 5 mm
  • Linear coil travel (p-p) 8.2 mm
  • Magnetic flux density 1.2 T
  • Magnet weight 0.54 kg
  • Net weight 1.43 kg
  • Free air resonance, Fs 39.4 Hz
  • Sensitivity (2.83V/1m) 92 dB
  • Mechanical Q-factor, Qms 10.1
  • Electrical Q-factor, Qes 0.47
  • Total Q-factor, Qts 0.45
  • Moving mass incl. air,Mms 16.3 g
  • Force factor, Bl 7.15 Tm
  • Equivalent volume, Vas 66.3 liters
  • Compliance, Cms 1.0 mm/N
  • Mechanical loss, Rms 0.4 kg/s
  • Rated power handling* 40 W

* IEC 268-5, T/S parameters measured on drive units that are broken in.

 

https://sbacoustics.com/wp-content/uploads/2022/04/8in-SB20FRPC30-8.pdf

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