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L18p300 Typical Characteristic Nominal Diameter 460 Mm 18 Inch

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Model L18P300 Typical characteristic Nominal Diameter Rated Impedance 460 4 mm Ω 1000 Watts 95 dB 30-2000 Hz / / / dB dB dB Power handling capacity (1) Sensitivity 1W, 1m Frequency Range (2) (3) 18 Inch Power Compression (4) @ -10dB power @ - 3dB power @ rated power Distortion (5) 2nd harmonic 3nd harmonic Effective Piston Diameter Maximum Excursion Before Damage (peak to peak) Minimum Impedance Voice Coil Diameter Voice Coil Material Voice Coil Winding Depth Number of layers Kind of layer Electrical polarity Thickness Top Plate Depth BL Factor Effective Moving Mass 2.5 % 1 % 380 mm 15.0 Inch 32 mm 1.3 Inch Ω 4.6 @ 140 Hz 100 mm 3.9 Inch Copper 24 mm 0.9 Inch 2 round - in/out A positive voltage applied on the red terminal produces forward cone motion. 15 mm 0.6 Inch BL 20.4 Txm 183 gr Mms Thiele - Small Parameters (6) Resonance frequency DC resistance Mechanical factor Electrical factor Total factor Equivalent Cas air load Effettive piston area Max. linear excursion (7) Linear displacement volume Voice - coil inductance @ 1KHz Half-space efficiency Mounting Information Overall Diameter Bolt Circle Diameter Bolt Hole Diameter Baffle Cutout Diameter Front Mount Rear Mount Depth Volume Displaced by Driver Net Weight Shipping Weight Fs Re Qms Qes Qts Vas 34 3.4 6.7 0.32 0.31 213 liter Sd 0.113 m2 Xmax 8.3 mm Vd Le1K Eff 940.8 2.05 2.5 cm3 mH % 470 438 8 mm mm mm 18.5 Inch 17.2 Inch 0.3 Inch 416 414 204 7 14.0 15.6 mm mm mm liter Kg Kg 16.4 Inch 16.3 Inch 8.0 Inch 1 AES standard (40-400) Hz. 2 Sensitivity is based on a 100-1000Hz pink noise signal for an in put 2.83V @ 8 Ohms. 3 Frequency range is defined as the frequency extremes over which the response is -10dB relative to rated sensitivity. 4 Power compression is the sensitivity loss at the specified power,measured from 50-500Hz,after a 5 minute AES standard 5 Distorsion is measured at -10dB rating power,from 100 to 500 Hz. 6 Thiele-Small parameter are measured after 2 hour exercise period using at the power handling capacity. 7 Mathematical Xmax pink noise preconditioning test at the specified power. Hz Ω Response (1W/1m) On axis 45° off axis 110 dB SPL 100 90 80 70 20 L18P300 4 ohms 100 1000 Frequency (Hz) 10000 20000 Impedance 316 Ohms 100 10 1 20 L18P300 4 ohms 100 1000 Frequency (Hz) 10000 20000 Fundamental 2nd harmonic 3rd harmonic RESPONSE at -10 dB Pmax (100 W,4 Ω) 120 110 100 dB SPL 90 80 70 60 50 40 20 L18P300 4 ohms 100 1000 Frequency (Hz) 10000 20000