General Specifications
Nominal Diameter 300/12 mm/inch
Rated Impedance 8ohm
Nominal Power handling 400 Watts
Program Power 800Watts
Sensitivity(lw/lm) 96dB
Frequency Range 54-5KHz
Minimum Impedance(Zmin) ohm
Voice Coil Diameter75 mm/inch
Voice Coil MaterialAluminium


Magnet gap depth10 mm
Surround Shape M-roll

Basket Cast Aluminium

Magnet Neodymium

Mounting Information
Overall DiameteR 310 mm
Bolt Circle Diameter 296 mm
Baffle Cutout Diameter 282 mm
Overall Depth 145 mm
Net Weight 4.15kg
Shipping weight 4.7 kg
Shipping Box
320*320*150mm
Thiele-Small Parameters
Resonance frequency
Fs 54 Hz
DC resistance Re 11.6 ohm
Mechanical factor
Qms 3.39
Electrical factor
Qes 0.33

Total factor Qts 0.3

Mechanical compliance
Cms 0.17 mm/N
Mechanical resistance
Rms 5.1 mech-ohm
of suspension losses

Effective Moving Mass
Mms 50.5 gr
Half-space efficiency
Eff 3.17 %
BL Factor
BL 24.7 T.m
Equivalent Cas air load
Vas 67.7liters
Voice-coil inductance
LelK 1.2 mH