SB ACOUSTICS SB17NRX2L35-4, 171mm (7in) NOREX PAPER CONE WOOFER 4 OHM.
Features
- Vented cast aluminum chassis for optimum strength and low compression
- Proprietary cone material with natural fibers made in-house
- Soft low damping rubber surround for transient response
- Non-conducting fiber glass voice coil former for minimum damping
- Extra large motor with extended copper sleeve on pole piece
- Vented coil former
- CCAW voice coil for reduced moving mass
- Long life silver lead wires
- Vented pole piece for reduced compression
Specs
- Nominal Impedance 4 Ω
- DC resistance, Re 3.1 Ω
- Voice coil inductance, Le 0.14 mH
- Effective piston area, Sd 118 cm2
- Voice coil diameter 35.5 mm
- Voice coil height 15.6 mm
- Air gap height 6 mm
- Linear coil travel (p-p) 9.6 mm
- Magnetic flux density 1.1 T
- Magnet weight 0.89 kg
- Net weight 2.32 kg
- Free air resonance, Fs 41 Hz
- Sensitivity (2.83V/1m) 92 dB
- Mechanical Q-factor, Qms 4.97
- Electrical Q-factor, Qes 0.26
- Total Q-factor, Qts 0.25
- Moving mass incl. air,Mms 13.5 g
- Force factor, Bl 6.45 Tm
- Equivalent volume, Vas 21.9 liters
- Compliance, Cms 1.1 mm/N
- Mechanical loss, Rms 0.7 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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