SB Acoustics 8 SB23NRXS45-8 Woofer

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SB Acoustics 8 SB23NRXS45-8 Woofer

Key features
  • Soft low damping rubber surround for improved transient response
  • Shorting ring in motor system for reduced distortion
  • Vented pole piece for reduced compression
  • Vented cast aluminum chassis for optimum strength and low compression
  • Shallow design
  • Non-conducting fiber glass voice coil former for minimum damping
  • CCAW voice coil for reduced moving mass
  • Long life silver lead wires

Short data

Usage as Woofer
Power Handling 60 Watt
Impedance 8 Ohm
Frequency from 150 Hz
Max. Frequency 1 kHz
Sound pressure 88.5 dB


Overall dimensions 234 mm
Baffle cutout 198 mm
Depth (Total) 89.17 mm
Voice coil Ø 45.5 mm
Voice coil height 19 mm
Air gap height 6 mm
Magnet Ø 120 mm
Magnet-weight 800 g


Resonance fs fs: 27 Hz
Mechanical Q Qms: 5.4
Electrical Q Qes: 0.41
Total Q Qts: 0.38
Equivalent Air-Volumen Vas: 94 Liter
DC-Resistance Re: 5.6 Ohm
Coil Inductance Le: 0.6 mH
Mech. Compliance Cms: 1.42 mm/N
Moving Mass Mms: 11.2 g
mech. Resistance Rms: 0.77 kg/s-¹
Max. Excursion +/- Xmax: 13 mm
BL Product Bl: 7.5 N/A
Membrane Area Sd: 216 cm²
Sound pressure dB: 88.5 SPL

Frequency & Impedance

Technical Dimensions

PDF-Product information

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