spec sd 18Nominal Basket Diameter 18" / 460mm
Impedance 8 ohms
RMS Power Rating 800 Watts
Program Power 1600 Watts
Frequency Response 30Hz - 1.5kHz
Sensitivity (1W/1m) 98dB
Voice Coil Diameter 4.5" / 114.3mm
Voice Coil Material Anodized CCAW+fiberglass
Terminal Type Gold Plated Push
Bobbin Material Fiberglass
Basket Cast Aluminum
Cone Material Paper
Surround Material Treated Cloth
Magnet Material Ferrite
Net Weight 15.32 kg. / 33.7 lbs.
MOUNTING INFORMATION
Bolt Circle Diameter 17.72" / 450mm
No. Of Mounting Holes 8
THIELE-SMALL PARAMETERS
Resonant Frequency (fs) 33 Hz
Impedance (Re) 5.1 ohms
Coil Inductance (Le) 1.95mH
Mechanical Q (Qms) 7.11
Electromagnetic Q (Qes) .27
Total Q (Qts) .26
Compliance Equivalent Vol. (Vas) 264.3 Liters/10.41cu. ft.
Voice Coil Overhang (Xmax) 5.0mm
BL Factor (BL) 35.8
Surface Area of Cone (Sd) .125m2
Reference Efficiency 3.42%