S8 Acoustics SB23MFCL45-4 Woofer

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S8 Acoustics SB23MFCL45-8 Woofer

Key features
  • Long stroke design
  • Linear high stability suspension
  • Low damping rubber surround
  • Long copper voice coil
  • Non-conducting reinforced fibre glass coil former
  • Very stiff mineral filled Polypropylene cone
  • Vented cast aluminium chassis
  • Large vented motor system
  • Long life silver lead wires
  • Optimized for smaller enclosures

Short data

Usage as Woofer
Power Handling 150 Watt
Impedance 4 Ohm
Frequency from 27 Hz
Max. Frequency 0.6 kHz
Sound pressure 87.5 dB


Overall dimensions 234 mm
Baffle cutout 203 mm
Depth (Total) 137.7 mm
Front material Aluminium
Frame Material Aluminium diecast
Membrane Type Cone
Membrane Material Polypropylene
Voice coil Ø 45.5 mm
Voice coil height 32 mm
Voice coil material Fibreglass
Air gap height 8 mm
Magnet Ø 130 mm
Magnet-weight 2000 g
Magnet-inductance 1.03 T


Resonance fs fs: 27 Hz
Mechanical Q Qms: 7.7
Electrical Q Qes: 0.36
Total Q Qts: 0.34
Equivalent Air-Volumen Vas: 37 Liter
DC-Resistance Re: 3.3 Ohm
Coil Inductance Le: 0.73 mH
Mech. Compliance Cms: 0.59 mm/N
Moving Mass Mms: 59 g
mech. Resistance Rms: 1.3 kg/s-¹
Max. Excursion +/- Xmax: 24 mm
BL Product Bl: 9.6 N/A
Membrane Area Sd: 210 cm²


Technical Dimensions

PDF-Product information

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