SB Acoustics SB23NRXS45-4 8'' Norex Cone Woofer
Features
- Soft low damping rubber surround for improved transient response
- Shorting ring in motor system for reduced distortion
- Vented pole piece for reduced compression
- Vented cast aluminum chassis for optimum strength and low compression
- Shallow designNon-conducting fiber glass voice coil former for minimum damping
- CCAW voice coil for reduced moving mass
- Long life silver lead wires
Specifications
- Nominal Impedance 4 ?
- DC resistance, Re 3.3 ?
- Voice coil inductance, Le 0.29 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 0.86 T
- Magnet weight 0.8 kg
- Net weight 2.74 kg
- Free air resonance, Fs 27 Hz
- Sensitivity (2.83V/1m) 92 dB
- Mechanical Q-factor, Qms 5.55
- Electrical Q-factor, Qes 0.32
- Total Q-factor, Qts 0.3
- Moving mass incl. air,Mms 27.2 g
- Force factor, Bl 6.9 Tm
- Equivalent volume, Vas 87.5 liters
- Compliance, Cms 1.33 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.
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