8″ SB23NRXS45-4 / Norex

PRODUCT COMPARISON

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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 designNon-conducting fiber glass voice coil former for minimum damping
  • CCAW voice coil for reduced moving mass
  • Long life silver lead wires

Specs

  • Nominal Impedance 4 Ω
  • DC resistance, Re 3.3 Ω
  • Voice coil inductance, Le 0.29 mH
  • Effective piston area, Sd 216 cm2
  • Voice coil diameter 45.5 mm
  • Voice coil height 19 mm
  • Air gap height 6 mm
  • Linear coil travel (p-p) 13 mm
  • Magnetic flux density 0.86 T
  • Magnet weight 0.8 kg
  • Net weight 2.74 kg
  • Free air resonance, Fs 27 Hz
  • Sensitivity (2.83V/1m) 92 dB
  • Mechanical Q-factor, Qms 5.55
  • Electrical Q-factor, Qes 0.32
  • Total Q-factor, Qts 0.3
  • Moving mass incl. air,Mms 27.2 g
  • Force factor, Bl 6.9 Tm
  • Equivalent volume, Vas 87.5 liters
  • Compliance, Cms 1.33 mm/N
  • Mechanical loss, Rms 0.8 kg/s
  • Rated power handling* 60 W

* IEC 268-5, T/S parameters measured on drive units that are broken in.