Description
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 | |
| 15" | QB3 - Low-Frequency Peak | 3.25-5.00 | Round | 4 | 14" @ 3.25ft³ 8" @ 5.00ft³ |
25 | |
| 15" | SBB4 - Flat Response | 1.50-2.00 | Round | 4 | 19" @ 1.50ft³ 14" @ 2.00ft³ |
32 | |
| 15" | SBB4 - Loud Bass Response | 2.50-6.50 | Round | 6 | 25" @ 2.50ft³ 7" @ 6.50ft³ |
32 | |
Technical Specifications — Custom Sparked 15" Bass Blaster Car Audio Subwoofer 2000W DVC
| Parameter | Value | Unit |
|---|---|---|
| RMS Power | 2000W | — |