SB ACOUSTICS SB12NRXF25-8 4” 8ohm Ferrite NRX Midwoofer Loudspeaker

SB ACOUSTICS SB12NRXF25-8 4” 8ohm Ferrite NRX Midwoofer Loudspeaker

• 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

SB12NRXF25-8 Specifications:

• 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

Why Choose Lean Business Audio?

50 years of experience of designing, building and supplying Home, Car and Professional Audio.

Huge stocks of leading loudspeakers and audio brands
KEF, Celestion, Eminence, WGS, Montage, BMS Speakers, Faital Pro, Eighteen Sound, Ciare

Low Worldwide shipping rates.
Free Delivery on selected brands with the UK.
Price matching.

For more information please contact us at: +44(0)1473 744089
Or Email us at: sales@lean-business.co.uk