ELECTRO ACOUSTIC SPECIFICATIONS

• Nominal Chassis Diameter 12” / 304.8 mm
• Impedance 8 O
• Power Handling 500 w (A.E.S.)
• Peak Power (6dB Crest Factor) 2000 w (A.E.S.)
• Usable Frequency Range -6dB 45 Hz - 1 kHz
• Sensitivity (1 w - 1 m) 97 dB
• Moving Mass inc. Air Load 70.8 grams
• Minimum Impedance Zmin 6.24 O
• Effective Piston Diameter 260.00 mm / 10.24"
• Peak Displacement Volume of Cone Vd 0.56 litres
• Magnet Weight 105.82 oz
• Magnetic Gap Depth 8.00 mm / 0.32"
• Flux Density 1.1 Tesla
• Coil Winding Height 25.00 mm / 0.98"
• Voice Coil Diameter 76.2 mm

THIELE SMALL PARAMETERS

• FS Hz 43 Hz
• RE Ohms 5.2 O
• Qms 5.81
• Qes 0.254
• Qts 0.244
• Vas Ltr 78 litres
• Vd litres 0.56 litres
• CMS (mm/N) 0.196 mm/N
• BL T/m 20 T/m
• Mms (grms) 70.8 grams
• Xmax (mm) 10.5 mm
• Sd (cm2) 531.6 cm2
• Efficiency % 2.316%
• Le (1k Hz) 2.49 mH

MOUNTING / SHIPPING INFORMATION

• Overall Diameter 330.2 mm
• Width Across Flats 309.62 mm
• Flange Height 7.8 mm
• Baffle Hole Diameter F/M 280.16 mm
• Baffle Hole Diameter R/M 257.30 mm
• Gasket Supplied Front & Rear
• Fixing Holes 4x 5.5 mm Ø on 317.5 mm PCD
• Depth 145.00 mm
• Weight 7.71 kg
• Recommended Enclosure Volume 25-65 litres
• Shipping Weight 8.62 kg
• Packing Carton Dimensions 340 x 340 x 222 mm

MATERIALS OF CONSTRUCTION

• Former Material Glass Fibre
• Voice Coil Copper
• Magnet Material Ferrite
• Chassis Die-cast Aluminium
• Cone Paper
• Surround / Edge Termination Polyvinyl Damped Multi Roll. Poly Cotton
• Dust Dome Paper
• Connectors Push-button Spring Terminals
• Polarity Positive voltage at red terminal causes forward motion of cone