SB Acoustics SB20PFC30-4 8" Paper Cone Woofer
.
Product description
Vented reinforced plastic chassis
Proprietary cone material with natural fibers made in-house
Soft low damping rubber surround for improved transient response
Large spider for improved linearity
Optimized motor system
Vented coil former for low compression
Non-resonant long life lead wires
.
Product details
SB Acoustics SB20PFC30-4 8" Paper Cone Woofer
The SB Acoustics SB20PFC30-4 is an 8" papyrus fiber paper cone woofer with a great value for its build quality and performance. Its components make it a good choice for many different enclosure types. An extended and smooth frequency response suggests simple crossovers, even none at all.
.
Specifications
Article numberSB20PFC30-4
Woofer SeriesPFC Series
Woofer TypeMidwoofer
Nominal Diameter8"
Power Handling (RMS)50 Watts
Impedance (Z)4 ohms
Sensitivity (SPL at 1m / 2.83V)92.5 dB
Voice Coil Diameter1.2"
DC Resistance (Re)3.4 ohms
Voice Coil Inductance (Le)0.71 mH
Resonant Frequency (Fs)33.7 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 mm/N
Surface Area of Cone (Sd)216 cm2
BL Product (BL)6.6 Tm
Compliance Equivalent Volume (Vas)2.33 ft.³
Maximum Linear Excursion (Xmax)5.75 mm