คำอธิบาย

SB Acoustics SB15SFCR39-8 / 5×8″ Paper
 
Features
Racetrack design
Hard paper cone (made in-house)
Optimized motor system
Non-conductive reinforced vented coil former
Symmetric suspension
Low damping rubber surround
Long life silver lead wires
Vented chassis
 
Specs
nominal Impedance 8 Ω
DC resistance, Re 6.2 Ω
Voice coil inductance, Le 1.3 mH
Effective piston area, Sd 178 cm2
Voice coil diameter 38.5 mm
Voice coil height 16 mm
Air gap height 6 mm
Linear coil travel (p-p) 10 mm
Magnetic flux density 0.94 T
Magnet weight 0.54 kg
Net weight 1.65 kg
Free air resonance, Fs 32 Hz
Sensitivity (2.83V/1m) 87.0 dB
Mechanical Q-factor, Qms 7.11
Electrical Q-factor, Qes 0.45
Total Q-factor, Qts 0.42
Moving mass incl. air,Mms 23 g
Force factor, Bl 8.0 Tm
Equivalent volume, Vas 48.3 liters
Compliance, Cms 1.08 mm/N
Mechanical loss, Rms 0.65 kg/s
Rated power handling* 80 W