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SB Acoustics 4" midwoofer with rubber NRX Norex cone, SB12NRX25-8

SB12NRX25-8

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SB Acoustics 4" midwoofer with rubber NRX Norex cone, SB12NRX25-8

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48,80 €

40,00 € tax excl.***

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SB Acoustics 4" midwoofer with rubber NRX Norex cone, SB12NRX25-8

Special Features

  • Proprietary cone material with natural fibres made in-house
  • High damping Butyl rubber surround for non-resonant sound character
  • Vented pole piece for reduced compression
  • Vented cast aluminium chassis for optimum strength and low compression
  • CCAW voice coil for reduced moving mass
  • Long life silver lead wires
  • Non-conducting fibre glass coil former for minimum damping

Specifications:

Nominal Impedance8 ΩFree air resonance, Fs57 Hz
DC resistance, Re6.4 ΩSensitivity (2.83 V / 1 m)85.5 dB
Voice coil inductance, Le0.34 mHMechanical Q-factor, Qms4.1
Effective piston area, Sd50 cm2Electrical Q-factor, Qes0.41
Voice coil diameter25.4 mmTotal Q-factor, Qts0.37
Voice coil height15 mmMoving mass incl.air, Mms5.2 g
Air gap height5 mmForce factor, Bl5.4 Tm
Linear coil travel (p-p)10 mmEquivalent volume, Vas5.3 liters
Magnetic flux density1.07 TCompliance, Cms1.49 mm/N
Magnet weight0.40 kgMechanical loss, Rms0.45 kg/s
Net weight0.92 kgRated power handling*30 W
* IEC 268-5, T/S parameters measured on drive units that are broken in.

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SB Acoustics 4" midwoofer with rubber NRX Norex cone, SB12NRX25-8

SB Acoustics 4" midwoofer with rubber NRX Norex cone, SB12NRX25-8

SB Acoustics 4" midwoofer with rubber NRX Norex cone, SB12NRX25-8