S8 Acoustics 5 SB15NRXC30 Midwoofer 8 Ohm

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S8 Acoustics 5 SB15NRXC30 Midwoofer

Key features
  • Vented cast aluminum chassis for optimum strength and low compression
  • Proprietary cone material with natural fibers made in-house
  • Soft low damping rubber surround for improved transient response
  • Non-conducting fiber glass voice coil former for minimum damping
  • Extended copper sleeve on pole piece for low inductance and low distortion
  • CCAW voice coil for reduced moving mass
  • Long life silver lead wires
  • Vented pole piece for reduced compression

Short data

Usage as Mid-Highrange
Power Handling 50 Watt
Impedance 8 Ohm
Frequency from 150 Hz
Max. Frequency 5 kHz
Sound pressure 88 dB


Overall dimensions 150 mm
Baffle cutout 123.9 mm
Depth (Total) 78.9 mm
Frame Material Aluminium diecast
Voice coil Ø 30.5 mm
Voice coil height 15 mm
Air gap height 5 mm
Magnet Ø 100 mm
Magnet-weight 540 g
Magnet-inductance 1.0 T


Resonance fs fs: 38 Hz
Mechanical Q Qms: 4.8
Electrical Q Qes: 0.35
Total Q Qts: 0.33
Equivalent Air-Volumen Vas: 20.7 Liter
DC-Resistance Re: 5.7 Ohm
Coil Inductance Le: 0.14 mH
Mech. Compliance Cms: 2.17 mm/N
Moving Mass Mms: 8.1 g
mech. Resistance Rms: 0.4 kg/s-¹
Max. Excursion +/- Xmax: 10 mm
BL Product Bl: 5.6 N/A
Membrane Area Sd: 82 cm²
Sound pressure dB: 88 SPL

Frequency & Impedance

Technical Dimensions

PDF-Product information

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