18 Sound 15NLW4500-4 15-inch Extended Low Frequency Loudspeaker — 1500 Watts Rms / 3000 Watts Peak — 4-Ohm Pro Audio Car & Motorcycle Component

Overview: The 18 Sound 15NLW4500-4 is a 15-inch extended low-frequency loudspeaker engineered for high-power pro audio use in car and motorcycle installations. Built with a Neodymium motor, this driver delivers exceptional thermal efficiency and high SPL performance while handling demanding power levels. Design and Recommended Setup: - Brand / Model: 18 SOUND 15NLW4500-4 15NLW4500 - Magnet Material: Neo - Recommended enclosure volume: 50.0 dm3 1.77 ft3 - Recommended tuning: 45 Hz Key Features: - 115mm 4.5in Interleaved Sandwich Voice coil (ISV) for linear excursion control - Weather-protected cone and plates for durability in outdoor or exposed installations - Excellent heat dissipation for sustained high-power operation - Ultra-linear suspension system to maintain control at long Xmax - Neo motor that provides high power handling with very efficient thermal exchange - Single demodulating ring (SDR) to reduce distortion and maximize SPL Electrical and Acoustic Specifications: - Nominal Impedance: 4 - Minimum Impedance: 3.7 - Nominal Power Handling: 1500 W - Continuous Power Handling: 3000 W - Sensitivity: 96.6 dB - Frequency Range: 40 - 1000 Hz - Voice Coil Diameter: 115 mm 4.53 in Thiele/Small Parameters: - Resonance Frequency: 35 Hz - Re: 3.0 - Qes: 0.21 - Qms: 6.38 - Qts: 0.2 - Vas: 126.0 dm3 4.45 ft - Sd: 881.0 cm2 136.56 in : 2.13 % - Xmax: 14.5 mm - Xvar: 12.0 mm - Mms: 198.0 g - Bl: 24.4 - Txm - Le: 1.1 mH - EBP: 166 Hz Mounting and Weights: - Overall Diameter: 393 mm 15.47 in - Bolt Circle Diameter: 371 mm 14.61 in - Baffle Cutout Diameter: 356.0 mm 14.02 in - Depth: 199 mm 7.83 in - Flange and Gasket Thickness: 15 mm 0.61 in - Net Weight: 11.4 kg 25.13 lb - Shipping Weight: 12.6 kg 27.78 lb This 15NLW4500-4 driver is optimized for extended low-frequency response and high output, making it suitable for professional mobile audio and other high-power subwoofer applications where compact enclosure volume and durable construction are required.