SPECIFICATIONS Nominal diameter : 300mm.12in Nominal Impedance : 8 ohm Program Power : 300w Continuous Power (RMS) : 250w Sensitivity (1w/1m) : 96.5dB Frequency range : 54 – 4KHz Voice coil diameter : 38.5mm Voice coil length : 16mm Magnet dimension : 120mm x 20mm
-------------------------------------------------------- --- BassBox Pro Version 3.03, Export Thiele-Small Format --- May 18,2009, Mon 5:57PM --- GPA 1239 --- Parameters marked with ** are not tested using the WT2 -------------------------------------------------------- --- mechanical --- Fs 56.166E+00 Hz Free air resonance Qms 6.547E+00 Q mechanical Vas 55.949E-03 m^3 Suspension compliance Cms 138.968E-06 m/N 1/(suspension stiffness) Mms 57.781E-03 kg Moving mass Rms 3.115E+00 kg/s Mechanical resistance Xmax ** 0.000E+00 m Maximum acoustic linear motion Xmech** 0.000E+00 m Mechanical displacement Dia 260.350E-03 m Piston diameter Sd 53.236E-03 m^2 Piston area Vd ** 0.000E+00 m^3 Displacement volume --- electrical --- Qes 1.325E+00 Q electrical Re 5.301E+00 ohms Voice coil DC resistance Le 733.281E-06 Henries Inductance @1 kHz Z 8.653E+00 ohms Impedance @1 kHz BL 9.033E+00 Tm Motor force - Newtons/Amp Pe ** 0.000E+00 W Max Electrical Power --- electro-mechanical --- Qts 1.102E+00 Q total no 703.118E-03 % 1/2-space ref efficiency @ 1m/1W 1-W SPL 90.488E+00 dB sensitivity at 1m on-axis 2.83V SPL 92.276E+00 dB sensitivity at 1m on-axis --- motor constants --- Krm 268.704E-06 ohms constant resistive motor impedance Erm 956.077E-03 exponent resistive motor impedance Kxm 12.716E-03 Henries constant reactive motor impedance Exm 652.573E-03 exponent reactive motor impedance
MATERIALS Basket Steel Cone and dust cap Paper Surround Thread coat Voice coil wire Copper clad aluminium Voice coil bobbin Aluminium