SB-Acoustics SB15NBAC30-8 / Aluminum

FEATURES

• Vented cast aluminum chassis for optimum strength and low compression
• Geometrically reinforced aluminum 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

SPECS

• Nominal Impedance 8 Ω
• DC resistance, Re 5.7 Ω
• Voice coil inductance, Le 0.14 mH
• Effective piston area, Sd 82 cm2
• Voice coil diameter 30.5 mm
• Voice coil height 14 mm
• Air gap height 5 mm
• Linear coil travel (p-p) 10 mm
• Magnetic flux density 1.0 T
• Magnet weight 0.54 kg
• Net weight 1.46 kg
• Free air resonance, Fs 35.5 Hz
• Sensitivity (2.83 V / 1 m) 85.5 dB
• Mechanical Q-factor, Qms 4.22
• Electrical Q-factor, Qes 0.41
• Total Q-factor, Qts 0.37
• Moving mass incl. air, Mms 10 g
• Force factor, Bl 5.7 Tm
• Equivalent volume, VAS 17 liters
• Compliance, Cms 1.81 mm/N
• Mechanical loss, Rms 0.6 kg/s
• Rated power handling* 50 W

* IEC 268-5, T/S parameters measured on drive units that are broken in.

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