SB Acoustics SB23NBACS45-8 8'' Black Aluminium 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 ?
- DC resistance, Re 5.7 ?
- 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.