SB Acoustics SB16PFCR25-8 6'' Paper Cone Woofer

SB Acoustics

SB Acoustics SB16PFCR25-8 6'' Paper Cone Woofer


Product Specifications
Nominal Impedance 8 ohms
DC resistence,Re 5.6 ohms
voice coil inductance,Le 0.77 mH
Free air resonance,Fs 38 Hz
Sensitivity(2.83V/1m) 87 dB
Mechanical Q-factor,Qms 2.5
Electrical Q-factor,Qes 0.48
Total Q-factor,Qts 0.40
Moving mass incl. air,Mms 13.8 g
Force factor,BI 6.2 Tm
Equivalent volume,Vas 27 liters
Compliance,Cms 1.25 mm/N
Mechanical loss,Rms 1.4 Kg/s
Rated power handling* 40W
Effective piston area,Sd 124 cm²
Voice coil diameter 25.4 mm
Voice coil height 14 mm
Air gap height 5 mm
Linear coil travel(p-p) 9 mm
Magnetic flux density 1.07 T
Magnetic weight 0.36 Kg
Net weight 0.96 Kg

Suggested box alignments:

  • Sealed box of 0.2 to 0.25 cubic feet (5.5 liters to 7 liters) should have a response of 3dB down on the low end of about 80Hz.
  • A ported enclosure of 0.35 cubic feet (10 liters) with a 1.5" diameter vent by 4" long should have a 3dB down point of about 55Hz.
  • A ported enclosure of 0.5 cubic feet (14 liters) with a 2" diameter vent by 7" long should have a 3dB down point of about 48Hz.

Frequency and Impedance Graph:

SB Acoustics SB16PFCR25-8 6'' Paper Cone Woofer

Drawing:

SB Acoustics SB16PFCR25-8 6'' Paper Cone Woofer