SB Acoustics SB23MFCL45-4 8'' Long Stroke Polypropylene Cone Subwoofer

Features

• Long stroke design
• Linear high stability suspension
• Low damping rubber surround
• Long copper voice coil
• Non-conducting reinforced fibre glass coil former
• Very stiff mineral filled Polypropylene cone
• Vented cast aluminium chassis
• Large vented motor system
• Long life silver lead wires
• Optimized for smaller enclosures

Specifications

• Nominal Impedance 4 ?
• DC resistance, Re 3.3 ?
• Voice coil inductance, Le 0.73 mH
• Effective piston area, Sd 210 cm²
• Voice coil diameter 45.5 mm
• Voice coil height 32 mm
• Air gap height 8 mm
• Linear coil travel (p-p) 24 mm
• Magnetic flux density 1.03 T
• Magnet weight 2.0 kg
• Net weight 4.70 kg
• Free air resonance, Fs 27 Hz
• Sensitivity (2.83V/1m) 87.5 dB
• Mechanical Q-factor, Qms 7.7
• Electrical Q-factor, Qes 0.36
• Total Q-factor, Qts 0.34
• Moving mass incl. air,Mms 59 g
• Force factor, Bl 9.6 Tm
• Equivalent volume, Vas 37 liters
• Compliance, Cms 0.59 mm/N
• Mechanical loss, Rms 1.3 kg/s
• Rated power handling* 150 W

* IEC 268-5, T/S parameters measured on drive units that are broken in.