Model NO: 18AV-9
1> GENERAL SPECIFICATIONS
*Nominal Diameter : 18inch
*Rated Impedance : 8 Ω
*Power Handing Capacity: 400 Watts
*Sensitivity (1W, 1M): 94 dB
*Effective Piston Diameter : 407 mm
*Voice Coil Diameter : 99. 5 mm /4 inch
2> THIELE-SMALL PARAMETERS
*Resonance Frequency /Fs : 40 Hz
*DC Resistance /Re : 5. 5 Ω
*Mechanical Q Factor /Qms : 8. 1
*Electrical Q Factor /Qes: 0. 58
*Total Q Factor /Qts : 0. 54
*BL Factor /BL : 23 TM
*Effective Moving Mass /Mms : 223 gr
*Equivalent Cas Air Load /Vas : 163 liters
*Effettive Piston Area /Sd : 0. 13 m2
*Half-Space Efficienc /Eff: 1. 83 %
*Airgap Height /Hag: 10 mm
*Voice coil Heigh /Hvc : 21. 0 mm
*Voice coil Over-Hu /Xmax : 5. 5 mm
3> PHYSICAL INFORMATION
*Basket : Aluminium
*Magnet Type, Size (ODxIDxH(mm)): 220x110x25. 4 Ferrite 125
OZ
*Voice Coil Former : BASV
*Voice Coil Material : EISV
*Cone Material: Pulp Paper
*Surround : Treated Cloth
*Spider : Cotton Blend Polyester
*Dust Cap : Pulp Paper