SB ACOUSTICS SB12NRX25-8 4” 8ohm Ferrite NRX Midwoofer Loudspeaker

SB ACOUSTICS SB12NRX25-8 4” 8ohm Ferrite NRX Midwoofer Loudspeaker

Product Description:

SB Acoustics SB12NRX25-8 4” Midrange Woofer
The SB Acoustics SB12NRX25-8 4″ Midwoofer is an excellent SB Acoustics Ferrite magnet midrange/midwoofer, featuring a high efficiency low damping rubber surround.
Fitted with a proprietary composition paper cone, 1″ voice coil. Very open cast frame for minimal reflections. Fs 55Hz, good level extended response up to 5KHz.

Key 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

SB12NRX25-8 Specifications: 

• Woofer Series: NRX Series
• Woofer Type: Midwoofer
• Nominal Diameter: 4″
• Power Handling (RMS): 30 Watts
• Impedance (Z): 8 ohms
• Sensitivity: 85.5 dB 2.83V/1m
• Voice Coil Diameter: 1″
• DC Resistance (Re): 6.4 ohms
• Voice Coil Inductance (Le): 0.34 mH
• Resonant Frequency (Fs): 57 Hz
• Mechanical Q (Qms): 4.1
• Electromagnetic Q (Qes): 0.41
• Total Q (Qts): 0.37
• Diaphragm Mass Inc. Airload (Mms): 5.2 g
• Mechanical Compliance of Suspension (Cms): 1.49 mm/N
• Surface Area of Cone (Sd): 50 cm2
• BL Product (BL): 5.4 Tm
• Compliance Equivalent Volume (Vas): 0.18 ft.³
• Maximum Linear Excursion (Xmax): 5 mm

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