ELECTRO ACOUSTIC SPECIFICATIONS |
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THIELE SMALL PARAMETERS |
Nominal Chassis Diameter 18” / 457.2 mm |
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FS Hz 33 Hz |
Impedance 4 /8 /16 O |
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RE Ohms 5.2 Ω |
Power Handling 1200 w (A.E.S.) |
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Qms 8.2 |
Peak Power (6dB Crest Factor) 4800 w (A.E.S.) |
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Qes 0.404 |
Usable Frequency Range -6dB 35 Hz - 500 Hz |
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Qts0.385 |
Sensitivity (1 w - 1 m) 100 dB |
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Vas Ltr 257 litres |
Moving Mass inc. Air Load 177 grams |
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CMS (mm/N) 0.124 mm/N |
Minimum Impedance Zmin 6.5 Ω |
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BL T/m 22.4 T/m |
Effective Piston Diameter 15.43” / 391.92 mm |
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Mms (grms) 188 grams |
Peak Displacement Volume of Cone Vd 1.45 litres |
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Xmax (mm) 12 mm |
Magnet Weight 145 oz |
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Sd (cm2) 1210 cm
2 |
Magnetic Gap Depth 0.43” / 11 mm |
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Efficiency % 2.20 % |
Flux Density 1.1 Tesla |
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Le (1k Hz) 1.5 mH |
Coil Winding Height 1.18” / 30.00 mm |
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Voice Coil Diameter 4.0” / 101.6 mm |
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MOUNTING / SHIPPING INFORMATION |
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MATERIALS OF CONSTRUCTION |
Overall Diameter 19.1” / 485 mm |
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Former Material Resin Bonded Glass Fibre |
Width Across Flats 18” / 457 mm |
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Voice CoilCopper - Inside / Outside Windings |
Flange Height 0.465” / 11.8 mm |
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Magnet MaterialFerrite |
Baffle Hole Diameter F/M 16.53” / 419.86 mm |
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Chassis Die-cast Aluminium |
Baffle Hole Diameter R/M 16.33” / 414.78 mm |
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ConeStraight Polycellulose
Ribbed Cone |
Gasket Supplied Front & Rear |
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Surround / Edge Termination Multi Roll Polyvinyl Damped Fabric |
Fixing Holes 8x 0.275” diam on 18.425
PCD / 8x 0.275 diam on 17.25
PCD 8x 7 mm diam on 468
PCD / 8x 7 diam on 438.15
PCD |
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Dust Dome Paper |
Depth 8.50” / 216 mm |
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Connectors Push-button Spring Terminals |
Weight 33.75 lb / 15.3 kg |
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Polarity Positive voltage at red terminal
causes forward motion of cone |
Recommended Enclosure Volume 4.41 - 14.12 cu ft / 125 - 400
litres |
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Shipping Weight 37.45 lb / 17 kg |
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Packing Carton Dimensions 250 x 520 x 520 mm |
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