SB ACOUSTICS SB20PFCR30-4 8” 4ohm Ferrite PFC Woofer Loudspeaker

SB ACOUSTICS SB20PFCR30-4 8” 4ohm Ferrite PFC Woofer Loudspeaker

Product Description:

The SB20PFCR30-4 features soft low damping rubber surround for improved transient response and a large spider for improved linearity as well as an optimized motor system.
Furthermore the vented coil former ensures low compression.

Key Features: 

• Improved transient response
• Improved linearity
• Optimized motor system
• Low compression
• Non-resonant long life lead wires

SB20PFCR30-4 Specifications:

• Woofer Type: Full-range
• Nominal Diameter: 8″
• Power Handling (RMS): 50W
• Impedance (Z): 4 Ohms
• Sensitivity: 92.5 dB
• Voice Coil Diameter: 30.5 mm
• Magnet Weight: 540g
• DC Resistance (Re): 3.4 ohms
• Voice Coil Inductance (Le): 0.71 mH
• Resonant Frequency (Fs): 34 Hz
• Mechanical Q (Qms): 2.78
• Electromagnetic Q (Qes): 0.37
• Total Q (Qts): 0.33
• Diaphragm Mass Inc. Airload (Mms): 22.4 g
• Mechanical Compliance of Suspension (Cms): 1.0 mm/N
• Surface Area of Cone (Sd): 216 cm2
• BL Product (BL): 6.6 Tm
• Compliance Equivalent Volume (Vas): 66.2 liters
• Driver’s Mechanical Losses (Rms): 1.7 kg/s
• Cone / Diaphragm Material: Papyrus fiber paper cone

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