SB Acoustics SB23NBACS45-8 8'' Black Aluminum Cone Woofer

Features

• Soft low damping rubber surround for improved transient response
• Geometrically reinforced aluminium cone for improved break-up control
• Shorting ring in motor system for reduced distortion
• Vented pole piece for reduced compression
• Vented cast aluminium chassis for optimum strength and low compression
• Shallow design
• Non-conducting fibre glass voice coil former for minimum damping
• CCAW voice coil for reduced moving mass
• Long life silver lead wires

Specifications

• Nominal Impedance 8 Ω
• DC resistance, Re 5.7 Ω
• Voice coil inductance, Le 0.37 mH
• Effective piston area, Sd 216 cm²
• Voice coil diameter 45.5 mm
• Voice coil height 19 mm
• Air gap height 6 mm
• Linear coil travel (p-p) 13 mm
• Magnetic flux density 0.9 T
• Magnet weight 0.8 kg
• Net weight 2.7 kg
• Free air resonance, Fs 25 Hz
• Sensitivity (2.83V/1m) 87.5 dB
• Mechanical Q-factor, Qms 5.54
• Electrical Q-factor, Qes 0.43
• Total Q-factor, Qts 0.40
• Moving mass incl. air,Mms 31.2 g
• Force factor, Bl 7.9 Tm
• Equivalent volume, Vas 93.4 liters
• Compliance, Cms 1.43 mm/N
• Mechanical loss, Rms 0.8 kg/s
• Rated power handling* 60 W

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