12″ SB34SWPL76-4 / Paper

PRODUCT COMPARISON

Category:

Features

  • Long stroke design
  • Linear high stability suspension
  • Low damping rubber surround
  • 3″ copper voice coil
  • Non-conducting reinforced fibre glass coil former
  • Very stiff hard paper cone (made in-house)
  • Vented cast aluminium chassis
  • Large vented motor system and vented coilformer
  • Long life silver lead wires

Specs

  • Nominal Impedance 4 Ω
  • DC resistance, Re 3.5 Ω
  • Voice coil inductance, Le 5.3 mH
  • Effective piston area, Sd 458 cm2
  • Voice coil diameter 76 mm
  • Voice coil height 38 mm
  • Air gap height 8 mm
  • Linear coil travel (p-p) 30 mm
  • Magnetic flux density 0.62 T
  • Magnet weight 2.4 kg
  • Net weight 7.68 kg
  • Free air resonance, Fs 19 Hz
  • Sensitivity (2.83V/1m) 85 dB
  • Mechanical Q-factor, Qms 7.7
  • Electrical Q-factor, Qes 0.33
  • Total Q-factor, Qts 0.32
  • Moving mass incl. air,Mms 264 g
  • Force factor, Bl 18.3 Tm
  • Equivalent volume, Vas 79 liters
  • Compliance, Cms 0.27 mm/N
  • Mechanical loss, Rms 4.1 kg/s
  • Rated power handling* 300 W

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