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The SW-218 Specifications
- Nominal Impedance: Parallel: 4 Ohms or 8 ohms x 2
- Dimensions: 47” Length x 23” Width 28” Deep
- Power Capacity: Continuous / Peak-Parallel: 2,828W RMS from 20Hz-120Hz /3,500W
- Frequency Range: 15 Hz – 160 Hz (–10 dB)
- Maximum SPL: 137dB SPL peak
- Recommend Cross over Frequencies: 90 Hz, 48 dB/octave LPF & 20Hz, 12 dB
- DC Resistance: 3.6 ohms ± 10%
- Transducer: woofer with Ceramic-magnet & Copper Clad voice coil
- System Sensitivity: Passive Mode 101dB SPL (1 watt @ 1 meter)
Virtually indestructible, the SW-218 has been outfitted with a North American Manufactured grill. CSW’s 12ga metal fabricated grills have a 96% open area, laser cut, powder coated automotive black and consist of a 2 fold return bend for extra durability.
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SW-218 Sensitivity
SW-218 SPL
SW-218 Impedance Curve
Outdoor, Mic (4007) on the ground, 2m away from the front of the box. 10 FFT averages, 683ms impulse long (1.5Hz resolution), arrival time approx. 5.8ms, 50-150ms (window resolution is approx. 11.7Hz) Sensitivity 20-160Hz is 104.7dB (1W/1m) – ground plane measurement 4.17VRMS sine wave -10dB at 20Hz -3dB at 45Hz
