SB Acoustics SB20PFC30-4 8'' Paper Cone Woofer

Price: 3,050.00INR
Ex Tax: 3,050.00INR
Brand:  SB Acoustics
Product Code:  SB20PFC30-4
Availability:  In Stock
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SB Acoustics SB20PFC30-4 8'' Paper Cone Woofer



  • Large surround dome for increased acoustic output
  • Dual balanced compression chamber for improved dynamics
  • Copper cap for reduced voice coil inductance and minimum phase shift
  • Saturation controlled motor system for low distortion
  • Non-reflective rear chamber with optimized damping for improved dynamics
  • Flow optimized vented pole piece for optimum coupling to rear chamber
  • CCAW voice coil for low moving mass
  • Long life silver lead wires
  • Low resonance frequency
  • Cast aluminium faceplate



Product Specification:

Nominal Impedance

4 ohms

DC resistence,Re

3.4 ohms

voice coil inductance,Le

0.71 mH

Free air resonance,Fs

33.7 Hz


92.5 dB

Mechanical Q-factor,Qms


Electrical Q-factor,Qes


Total Q-factor,Qts


Moving mass incl. air,Mms

22.4 g

Force factor,BI

6.6 Tm

Equivalent volume,Vas

66.2 liters


1.0 mm/N

Mechanical loss,Rms

1.7 Kg/s

Rated power handling*


Effective piston area,Sd

216 cm²

Voice coil diameter

35.5 mm

Voice coil height

16.5 mm

Air gap height

5 mm

Linear coil travel(p-p)

11.5 mm

Magnetic flux density

1.2 T

Magnetic weight

0.54 Kg

Net weight

1.43 Kg


Product Manuals / Spec Sheets / Downloads: Specifications Please Click Here.

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