DOWN4SOUND SB 15" SUBWOOFER - 4 OHM DVC | 500W RMS

QUICK NOTES: RMS Handling: 500W RMS Coil Size: 2.5 Inch Cutout Diameter: 13.62 inches / 346 mm Outer Diameter: 15.51 inches / 394 mm Mounting Depth: 8.01 inches / 203.5 mm Motor Height: 3.54 inches / 90 mm Net Weight: 46.3 lbs / 21 kg Gross Weight: 50.7 lbs / 23 kg Highly optimized suspension for deep, accurate sound reproduction Durable design for long-term use Technical Specifications: Revc (DC Resistance): 6.13 Ohm Resonance Frequency (Fs): 31.07 Hz BL Product: 18.82 T·m Total Moving Mass (Mms): 300.0 g Suspension Compliance (Cms): 94.27 μm/N Effective Piston Area (Sd): 855.29 cm² Equivalent Volume (Vas): 92.78 L Sensitivity (SPL): 86.6 dB Qms (Mechanical Q): 4.301 Qes (Electrical Q): 0.939 Qts (Total Q): 0.771 Ported Enclosure Size: 3.0 cuft net Port Area: 44 sqin Port Tuning: 35hz Sealed Enclosure Not Recommended  Outside Diameter: 15.59 in (396mm) Displacement: 0.19 cu ft