SB Acoustics SB12NRXF25-4 4" Midrange Woofer
SB Acoustics SB12NRXF25-4 4" Midrange Woofer
SB Acoustics SB12NRXF25-4 4" Midrange Woofer
SB Acoustics SB12NRXF25-8 4" Midrange Woofer
SB Acoustics SB12NRXF25-8 4" Midrange Woofer
SB Acoustics SB12NRXF25-4 4" Midrange Woofer
SB Acoustics SB12NRXF25-4 4" Midrange Woofer
SB Acoustics SB12NRXF25-4 4" Midrange Woofer
SB Acoustics SB12NRXF25-8 4" Midrange Woofer
SB Acoustics SB12NRXF25-8 4" Midrange Woofer

SB Acoustics SB12NRXF25-8 4" Midrange Woofer

IMPORTED_SB_ACOUSTIC_42
8 pcs.
In Stock
€ 55.22
Tax included

    Features

  • Proprietary cone material with natural fibres made in-house
  • Foam surround for maximum transparency and midrange resolution
  • 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
  • Shorting ring in motor system for reduced distortion
(0)
4" | 8 Ω | 30 W

Brand

 

    Specs

Nominal Impedance 8 Ω

DC resistance, Re 6.4 Ω

Voice coil inductance, Le 0.34 mH

Effective piston area, Sd 50 cm2

Voice coil diameter 25.4 mm

Voice coil height 15 mm

Air gap height 5 mm

Linear coil travel (p-p) 10 mm

Magnetic flux density 1.07 T

Magnet weight 0.40 kg

Net weight 0.92 kg

Free air resonance, Fs 63 Hz

Sensitivity (2.83 V / 1 m) 85 dB

Mechanical Q-factor, Qms 5.4

Electrical Q-factor, Qes 0.46

Total Q-factor, Qts 0.42

Moving mass incl. air, Mms 5.5 g

Force factor, Bl 5.5 Tm

Equivalent volume, VAS 4.2 liters

Compliance, Cms 1.18 mm/N

Mechanical loss, Rms 0.4 kg/s

Rated power handling* 30 W

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

Diameter
4"
Impedance
8 Ω
Power
30 W
Series
NRX/Norex
Material
Aluminum
Paper

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