• Long stroke design
• Linear high stability suspension
• Higher shore hardness rubber surround
• Dual 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 2 x 3 Ω
• DC resistance, Re 2 x 2.5 Ω
• Voice coil inductance, Le(par./ser.) 1.4/6.1 mH
• Effective piston area, Sd 458 cm2
• Voice coil diameter 75.5 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 7.7 kg
• Free air resonance, Fs 27.5 Hz
• Sensitivity (2.83V/1m) 90/85 dB
• Mechanical Q-factor, Qms 5.62
• Electrical Q-factor, Qes 0.52
• Total Q-factor, Qts 0.48
• Moving mass incl. air,Mms 231 g
• Force factor, Bl(par./ser.) 9.7/19.5 Tm
• Equivalent volume, Vas 43 liters
• Compliance, Cms 0.14 mm/N
• Mechanical loss, Rms 7.1 kg/s
• Rated power handling* 300 W