SB ACOUSTICS SB12MNRX2-25-4 4” 4ohm Ferrite NRX Midrange Loudspeaker

SB ACOUSTICS SB12MNRX2-25-4 4” 4ohm Ferrite NRX Midrange Loudspeaker

Key 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
• Shorting ring in motor system for reduced distortion

SB12MNRX2-25-4 Specifications:

• Nominal Impedance 4 Ω
• DC resistance, Re 3.2 Ω
• Voice coil inductance, Le 0.15 mH
• Effective piston area, Sd 50 cm²
• Voice coil diameter 25.4 mm
• Voice coil height 9.4 mm
• Air gap height 5 mm
• Linear coil travel (p-p) 4.4 mm
• Magnetic flux density 1.03 T
• Magnet weight 0.4 kg
• Net weight 0.92 kg
• Free air resonance, Fs 63.5 Hz
• Sensitivity (2.83V/1m) 90.5 dB
• Mechanical Q-factor, Qms 4.19
• Electrical Q-factor, Qes 0.35
• Total Q-factor, Qts 0.32
• Moving mass incl. air,Mms 4.2 g
• Force factor, Bl 3.9 Tm
• Equivalent volume, Vas 5.3 liters
• Compliance, Cms 1.5 mm/N
• Mechanical loss, Rms 0.4 kg/s
• Rated power handling* 50 W

25mm Voice coil, Norex paper Cone, Rubber Surround, Ferrite Motor, Aluminium chassis

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