SB-Acoustics SB12PACR25-4 Aluminum

FEATURES

• Vented reinforced plastic chassis
• Anodised aluminium cone
• Low damping rubber surround
• Large vented motor system
• Long stroke linear suspension
• Light weight CCAW voice coil
• Non-conducting fibreglass coil former
• Non-resonant long life lead wires

SPECS

• Nominal Impedance 4 Ω
• DC resistance, Re 3.1 Ω
• Voice coil inductance, Le 0.25 mH
• Effective piston area, Sd 50 cm2
• Voice coil diameter 25.4 mm
• Voice coil height 15 mm
• Air gap height 5 mm
• Linear coil travel (p-p) 10 mm
• Magnetic flux density 1.03 T
• Magnet weight 0.40 kg
• Net weight 0.86 kg
• Free air resonance, Fs 52.5 Hz
• Sensitivity (2.83 V / 1 m) 87 dB
• Mechanical Q-factor, Qms 5.0
• Electrical Q-factor, Qes 0.33
• Total Q-factor, Qts 0.31
• Moving mass incl. air, Mms 6.1 g
• Force factor, Bl 4.35 Tm
• Equivalent volume, VAS 5.3 liters
• Compliance, Cms 1.50 mm/N
• Mechanical loss, Rms 0.4 kg/s
• Rated power handling* 30 W

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

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