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SB Acoustics 8" mid/woofer 45mm vc NRX Norex cone, SB23NRXS45-4

SB23NRXS45-4

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SB Acoustics 8" mid/woofer 45mm vc NRX Norex cone, SB23NRXS45-4

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89,06 €

73,00 € tax excl.***

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SB Acoustics 8" mid/woofer 45mm vc NRX Norex cone, SB23NRXS45-4

Special 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

Specifications:

Nominal Impedance4 ΩFree air resonance, Fs27 Hz
DC resistance, Re3.3 ΩSensitivity (2.83 V / 1 m)92 dB
Voice coil inductance, Le0.29 mHMechanical Q-factor, Qms5.55
Effective piston area, Sd216 cm2Electrical Q-factor, Qes0.32
Voice coil diameter45.5 mmTotal Q-factor, Qts0.3
Voice coil height19 mmMoving mass incl.air, Mms27.2 g
Air gap height6 mmForce factor, Bl6.9 Tm
Linear coil travel (p-p)13 mmEquivalent volume, Vas87.5 liters
Magnetic flux density0.86 TCompliance, Cms1.33 mm/N
Magnet weight0.8 kgMechanical loss, Rms0.77 kg/s
Net weight2.74 kgRated power handling*60 W
* IEC 268-5, T/S parameters measured on drive units that are broken in.

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SB Acoustics 8" mid/woofer 45mm vc NRX Norex cone, SB23NRXS45-4

SB Acoustics 8" mid/woofer 45mm vc NRX Norex cone, SB23NRXS45-4

SB Acoustics 8" mid/woofer 45mm vc NRX Norex cone, SB23NRXS45-4