5″ x 8″ SB15SFCR39-04

FEATURES:

• Racetrack design
• Hard paper cone (made in-house)
• Optimized motor system
• Non-conductive reinforced vented coil former
• Low damping rubber surround
• Symmetric suspension
• Easily adjustable moving mass
• Long life silver lead wires
• Vented chassis

SPECS:

• Nominal Impedance 4 Ω
• DC resistance, Re 3.5 Ω
• Voice coil inductance, Le 0.88 mH
• Effective piston area, Sd 178 cm²
• Free air resonance, Fs 31,5 Hz
• Compliance, Cms 0.93 mm/N
• Voice coil diameter 38.5 mm
• Voice coil height 17 mm
• Air gap height 6 mm
• Linear coil travel (p-p) 11 mm
• Magnetic flux density 0.94 T
• Magnet weight 0.54 kg
• Sensitivity (2.83V/1m) 89.5 dB
• Mechanical Q-factor, Qms 7.9
• Electrical Q-factor, Qes 0.34
• Total Q-factor, Qts 0.33
• Moving mass incl. air, Mms 24 g
• Force factor, Bl 7.0 Tm
• Equivalent volume, Vas 47.8 liters
• Mechanical loss, Rms 0.6 kg/s
• Total weight 1.65 kg

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