4in SB12CACS25-8

4” SB12CACS25-8 / Ceramic

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Features

  • Vented cast aluminum chassis for optimum strength and low compression
  • Ceramic cone
  • Soft low damping rubber surround for improved transient response
  • Shorting ring in motor system for reduced distortion
  • Non-conducting fibre glass voice coil former for minimum damping
  • 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 6.4 Ω
  • Voice coil inductance, Le 0.34 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 1.07 T
  • Magnet weight 0.40 kg
  • Net weight 0.92 kg
  • Free air resonance, Fs 51 Hz
  • Sensitivity (2.83 V / 1 m) 85.5 dB
  • Mechanical Q-factor, Qms 4.85
  • Electrical Q-factor, Qes 0.4
  • Total Q-factor, Qts 0.37
  • Moving mass incl. air, Mms 5.3 g
  • Force factor, Bl 5.2 Tm
  • Equivalent volume, VAS 6.5 liters
  • Compliance, Cms 1.84 mm/N
  • Mechanical loss, Rms 0.35 kg/s
  • Rated power handling* 30 W

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