SB Acoustics SB23NRXS45-4 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 design
- Non-conducting fiber glass voice coil former for minimum damping
- CCAW voice coil for reduced moving mass
- Long life silver lead wires
Specs
Nominal Impedance 4 Ω
DC resistance, Re 3.3 Ω
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.
- Diameter
- 8"
- Impedance
- 4 Ω
- Power
- 60 W
- Series
- NRX/Norex
- Material
- Paper


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