Custom Sparked 15" Bass Blaster Car Audio Subwoofer 2000W DVC

These are custom prototype woofers used in our Demo/Competition car. Built upon the stock Bass Blaster motor, coil, and spider. The feature a Mega-Roll Sundown Audio surround and cone with three SQL-2000 aluminum dust caps for added mass. The added mass gives a lower Fs to crush the mega low frequencies. Only four were made. D4 coils. Please note, these were test units and may have scratches and scuffs. General Specifications Power handling 2000W RMS Dual voice coil D4 Xmax (mm one way) 21.5 Gap Geometry/ 25@ 70% BL Xmech (mm one way) 42 Heat-treated 4-layer 4-inch coil Quad braided tinsel leads Mega Roll foam surround Aluminum dust cap = 3 Cast aluminum frame High-velocity motor cooling Measurements Parameter Metric (mm) Imperial (in) Outer Diameter 389.90 15.35 Mounting Diameter 355.60 14.00 Overall Depth 273.84 10.78 Mounting Depth 243.84 9.60 T/S Parameters Parameter D4 RE (Ohms) 5.97 Fs (Hz) 29.72 VAS (L) 32.02 Qes 0.69 Qms 6.97 Qts 0.63 BL 35.98 Mms (Grams) 797.52 Cms (uM/N) 35.95 Sensitivity (dB @2.83Vrms/1m) 83.90 @ 1 kHz ENCLOSURE RECOMMENDATIONS Size Enclosure Type Volume (ft³) Port Tuning (Hz) Details Type Dia. (in) Length (in) 15" QB3 - Flat Response 2.75-3.50 Round 4 23" @ 2.75ft³ 17" @ 3.50ft³ 22 Details 15" QB3 - Low-Frequency Peak 3.25-5.00 Round 4 14" @ 3.25ft³ 8" @ 5.00ft³ 25 Details 15" SBB4 - Flat Response 1.50-2.00 Round 4 19" @ 1.50ft³ 14" @ 2.00ft³ 32 Details 15" SBB4 - Loud Bass Response 2.50-6.50 Round 6 25" @ 2.50ft³ 7" @ 6.50ft³ 32 Details ×