Басов говорител SB ACOUSTICS SB20PFCR30-8, 20см, 50W RMS

Този 8-инчов басов говорител с конус от папирусови влакна е страхотна стойност за това качество на изработка и производителност. Спецификациите го правят добър избор за много различни типове корпуси. Разширената и гладка честотна характеристика предполага прости кросоувъри, дори никакви.

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

Nominal Impedance 8 Ω
DC resistance, Re 5.6 Ω
Voice coil inductance, Le 0.84 mH
Effective piston area, Sd 216 cm2
Voice coil diameter 30.5 mm
Voice coil height 16.5 mm
Air gap height 5 mm
Linear coil travel (p-p) 11.5 mm
Magnetic flux density 1.2 T
Magnet weight 0.54 kg
Net weight 1.42 kg
Free air resonance, Fs 34 Hz
Sensitivity (2.83V/1m) 90.5 dB
Mechanical Q-factor, Qms 2.66
Electrical Q-factor, Qes 0.43
Total Q-factor, Qts 0.37
Moving mass incl. air,Mms 21.2 g
Force factor, Bl 7.7 Tm
Equivalent volume, Vas 66.2 liters
Compliance, Cms 1.0 mm/N
Mechanical loss, Rms 1.7 kg/s
Rated power handling* 50 W

Sealed box of 0.5 to 0.75 cubic foot for a 3dB down of about 70Hz

Vented box of 0.75 cubic foot with 2" Ø vent by 5" long for f3 of 55Hz
Vented box of 1.0 cubic foot with 2" Ø vent by 4" long for f3 of 49Hz
Vented box of 1.25 cubic feet with 2" Ø vent by 3.5" long for f3 of 45Hz
Vented box of 1.5 cubic feet with 2" Ø vent by 3" long for f3 of 42Hz