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SB Acoustics 4" midrange with rubber NRX Norex cone, SB12MNRX25-4

SB12MNRX25-4

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SB Acoustics 4" midwoofer with rubber NRX Norex cone, SB12MNRX25-4

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53,68 €

44,00 € ilma maksudeta***

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SB Acoustics 4" midwoofer with rubber NRX Norex cone, SB12MNRX25-4

Special Features

  • Proprietary cone material with natural fibres made in-house
  • Shortened voice coil optimized for pure midrange reproduction
  • 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 Impedance4 ΩFree air resonance, Fs58 Hz
DC resistance, Re3.2 ΩSensitivity (2.83 V / 1 m)88.5 dB
Voice coil inductance, Le0.14 mHMechanical Q-factor, Qms3.6
Effective piston area, Sd50 cm2Electrical Q-factor, Qes0.42
Voice coil diameter25.4 mmTotal Q-factor, Qts0.37
Voice coil height9.5 mmMoving mass incl.air, Mms4.9 g
Air gap height5 mmForce factor, Bl3.7 Tm
Linear coil travel (p-p)4.5 mmEquivalent volume, Vas5.5 liters
Magnetic flux density0.9 TCompliance, Cms1.55 mm/N
Magnet weight0.4 kgMechanical loss, Rms0.5 kg/s
Net weight0.85 kgRated power handling*50 W
* IEC 268-5, high-pass Butterworth, 200 Hz, 12 dB/oct.

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SB Acoustics 4" midrange with rubber NRX Norex cone, SB12MNRX25-4

SB Acoustics 4" midrange with rubber NRX Norex cone, SB12MNRX25-4

SB Acoustics 4" midwoofer with rubber NRX Norex cone, SB12MNRX25-4