SB Acoustics SB17NBAC35-4 6'' Black Aluminium Cone Woofer
Features:
- Vented cast aluminium chassis for optimum strength and low compression
- Geometrically reinforced aluminium cone for optimum piston operation and reduced break-up
- Soft low damping rubber surround for improved transient response
- Non-conducting fibre glass voice coil former for minimum damping
- Extended copper sleeve on pole piece for low inductance and low distortion
- CCAW voice coil for reduced moving mass
- Long life silver lead wires
- Vented pole piece for reduced compression
Specifications:
- Nominal Impedance 4 ?
- DC resistance, Re 3.1 ?
- Voice coil inductance, Le 0.13 mH
- Effective piston area, Sd 118 cm2
- Voice coil diameter 35.5 mm
- Voice coil height 16 mm
- Air gap height 5 mm
- Linear coil travel (p-p) 11 mm
- Magnetic flux density 1.0 T
- Magnet weight 0.54 kg
- Net weight 1.56 kg
- Free air resonance, Fs 30 Hz
- Sensitivity (2.83 V / 1 m) 90 dB
- Mechanical Q-factor, Qms 4.3
- Electrical Q-factor, Qes 0.31
- Total Q-factor, Qts 0.29
- Moving mass incl. air, Mms 12.4 g
- Force factor, Bl 4.9 Tm
- Equivalent volume, VAS 42.6 liters
- Compliance, Cms 2.16 mm/N
- Mechanical loss, Rms 0.6 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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