High Spl Output Sub-bass Driver. • 100 Mm (4”) Voice Coil

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SUB-BASS DRIVER 27 Hz - 500 Hz FREQUNECY RESPONSE • • • • • • • • High SPL output sub-bass driver. 100 mm (4”) voice coil High Sensitivity, 97dB Ultra low distortion Double suspension Ultra linearity and stability at high excursions. 12.15 mm Xmax Delivers amazing sub-bass frequency response, 27 Hz - 500 Hz 97 dB 1200 w (A.E.S.) POWER HANDLING SENSITIVITY (1w / 1m) 4.0” / 101.6 mm Ultra Low Distortion 12.15 mm Xmax COPPER VOICE COIL FREQUENCY RESPONSE DATA +120 +110 +100 +90 dBr 18” / 457 mm CHASSIS DIAMETER +80 +70 +60 +50 20 50 100 200 500 1k 2k 5k 10k 20k Hz * Half Space response measured in a 975 litre sealed enclosure Power Handling Peak Power (6dB Crest Factor) Usable Frequency Range -6dB Sensitivity (1 w - 1 m) Moving Mass inc. Air Load Minimum Impedance Zmin Effective Piston Diameter Peak Displacement Volume of Cone Vd Magnet Weight Magnetic Gap Depth Flux Density Coil Winding Height Voice Coil Diameter 8.4 Ω 1200 w (A.E.S.) 3600 w (A.E.S.) 27 Hz - 500 Hz 97 dB 144 grams 7Ω 15.43" / 392 mm 1.45 litres 120 oz 0.47" / 12 mm 1.0 Tesla 0.98” / 25 mm Width Across Flats Flange Height Baffle Hole Diameter F/M Baffle Hole Diameter R/M Gasket Supplied Fixing Holes Depth Weight Recommended Enclosure Volume Shipping Weight Packing Carton Dimensions RE Ohms Qms Qes Qts Vas Ltr Vd litres CMS (mm/N) BL T/m Mms (grms) Xmax (mm) Sd (cm2) Efficiency % Le (1k Hz) 32 Hz 200 5.8 Ω 100 6.2 0.32 236 1.45 20 19.1” / 485 mm 18” / 457 mm 0.465” / 11.8 mm 16.53” / 420 mm 26.74 2 206 1 12.15 Former Material Voice Coil Magnet Material Front & Rear Cone 4.41 - 14.12 cu ft / 125 - 400 litres 37.45 lb / 17 kg 50 100 200 2.2 1.8 mH 500 1k 2k 5k 10k 20k Hz PREDICTED BASS RESPONSE 0 MATERIALS OF CONSTRUCTION Chassis 33.75 lb /15.3 kg 20 1178 +6 16.33” / 414 mm 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 8.85" / 225 mm 10 5 0.122 Surround / Edge Termination Dust Dome Connectors Polarity Glass Fibre Copper ‘sandwich’ inside outside windings Ferrite Die-cast Aluminium Straight polycellulose Ribbed Cone Polyvinyl Damped Multi Roll, Poly Cotton Solid Paper (Inverted) -6 -12 -18 -24 -30 -36 5 10 50 100 500 5k 1k 10k 20k Hz ** Normalised bass response in 175 litre tuned to 35 Hz 18'' 457 mm Push-button Spring Terminals Positive Voltage at Red Terminal Causes Forward Motion of Cone 250 x 520 x 520 mm • A.E.S. power handling test. Pink noise bandpass filtered at 12 dB per octave with cutoff frequencies of 30Hz and 300 Hz. Driver mounted in free air, test signal applied at rated power for two hours. • Please note that the frequency response measurements are supplied for comparison only and are not a measure of the low frequency performance which may be achieved in a fully optimised system. www.ligwa.co.uk 50 0.336 4.0” / 101.6 mm MOUNTING / SHIPPING INFORMATION Overall Diameter THIELE SMALL PARAMETERS FS Hz dB Impedance 18” Ohms ELECTRO ACOUSTIC SPECIFICATIONS Nominal Chassis Diameter IMPEDANCE 8.29'' 210.6 mm Revision: 130513