SB Acoustics SB12PFCR25-8 Paper Bass-midwoofer.
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Product description
The SB Acoustics SB12PFCR25-8 is a 4" mid-woofer with a 25mm voice coil and a vented reinforced plastic chassis. It features a proprietary cone material with natural fibers made in-house and a butyl rubber surround for smooth frequency response. The optimized long throw motor system is also noteworthy.
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Highlights
Vented reinforced plastic chassis
Proprietary cone material with natural fibers made in-house
Butyl rubber surround for smooth frequency response
Vented motor system for low compression
Long stroke linear suspension for improved dynamics
Non-resonant long life lead wires
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Product details
SB Acoustics SB12PFCR25-8 Paper Bass-midwoofer
The SB Acoustics SB12PFCR25-8 is a mid-woofer that is designed to reproduce frequencies in the range of 50 Hz to 4 kHz. It is suitable for use in a two-way speaker system or as a mid-woofer in a three-way system. The vented reinforced plastic chassis helps to reduce unwanted resonances and the proprietary cone material with natural fibers made in-house provides a good balance between stiffness and damping. The butyl rubber surround helps to provide a smooth frequency response. The optimized long throw motor system helps to reduce distortion and improve power handling.
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Specifications
Article numberSB12PFCR25-8
Woofer SeriesPFC / Paper
Woofer TypeBass-midwoofer
Nominal Diameter4"
Power Handling (RMS)30 W
Impedance (Z)8 ohms
Sensitivity (SPL at 1m / 2.83V)84.5 dB
Voice Coil Diameter25.4 mm
DC Resistance (Re)6.4 ohms
Voice Coil Inductance (Le)0.36 mH
Resonant Frequency (Fs)64 Hz
Mechanical Q (Qms)4.10
Electromagnetic Q (Qes)0.65
Total Q (Qts)0.56
Diaphragm Mass Inc. Airload (Mms)5.1 g
Mechanical Compliance of Suspension (Cms)1.21 mm/N
Surface Area of Cone (Sd)50 cm2
BL Product (BL)4.5 Tm
Compliance Equivalent Volume (Vas)4.3 liters
Maximum Linear Excursion (Xmax)5 mm
Driver's Mechanical Losses (Rms)0.5 kg/s
# Mounting Holes4