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S518S 18" Passive Subwoofer
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1800 watts peak
18″ high-output woofer
PVC vinyl covered wood enclosures with protective edge bumpers
Wood enclosure with high-durability, textured paint
Integrated low-pass filter for maximum punch
Frequency Range (-10 dB): 37 Hz - 220 kHz
Sensitivity (1W @ 1m): 98.3 dB SPL
Nominal Impedance: 8 ohms
Power Handling: 450 watts continuous
900 watts program 180 watts peak
Low-Pass filter: 120 Hz, 12dB/octave
Transducers
2 Low Frequency: 18" / 457 mm woofer, vented
High Frequency: 1" / 25 mm tweeter

Physical
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Input connectors: Two 1/4" TS jacks Two NL4 jacks, paralleled
Enclosure: Wood with textured black PVC vinyl covering
Dimensions: (W x H x D) 20.3" x 23.9" x 21.3"
Weight: 70lb.