Description
These are custom prototype woofers used in our Demo/Competition car. Built upon the stock Bass Blaster motor, coil, and cone. They feature layered progressive red spiders and a blue carbon fiber dust cap for lighter mass than stock. The lower mass gives a higher Fs to hit higher SPL at 40hz and above. Still musical and good for daily listening.
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 Cabon Cap Sparked 15" Bass Blaster Car Audio Subwoofer 2000W DVC
| Parameter | Value | Unit |
|---|---|---|
| RMS Power | 2000W | — |