Description
Built upon the proven, World-Class, performance of The Bass Blaster, the SQL-2000 sets itself among some of the best sounding, most versatile, and durable woofers in it's class. 
The four (4) inch copper coil comes immersed in a Jacob Fuller designed motor assembly complete with aluminum shorting pole cap, flared velocity heat-vents, and plenty of ferrite in it's dual 9.25"" diameter slugs which gives it one of the highest motor forces in a woofer of it's size. 
New styling gives the SQL-2000 a sleek look. A molded rubber magnet boot, laser engraved and polished backplate, and heavy aluminum dust cap add to the modern aesthetics and a classy style that's sure to blend well with almost any install. 
General Specifications
| Power handling |
2000W RMS |
| Dual voice coil |
D2 or D4 |
| Xmax (mm one way)  |
25 |
| Xmech (mm one way)  |
50 |
| Heat-treated 4-layer 4-inch coil |
| Quad braided tinsel leads |
| Multi-layer foam surround in Sparked Blue |
| Aluminum dust cap |
| Cast aluminum frame |
| High-velocity motor cooling |
Measurements
| Parameter |
Metric (mm) |
Imperial (in) |
| Outer Diameter |
464.06 |
18.27 |
| Mounting Diameter |
426.47 |
16.79 |
| Overall Depth |
301.36 |
11.86 |
| Mounting Depth |
271.36 |
10.68 |
T/S Parameters
| Parameter |
D2 |
D4 |
| RE (Ohms) |
3.91 |
5.94 |
| Fs (Hz) |
26.72 |
27.44 |
| VAS (L) |
70.36 |
74.16 |
| Qes |
0.63 |
0.69 |
| Qms |
6.86 |
6.67 |
| Qts |
0.58 |
0.63 |
| BL |
32.08 |
36.54 |
| Mms (Grams) |
994.75 |
894.78 |
| Cms (uM/N) |
35.66 |
37.60 |
| Sensitivity (dB @2.83Vrms/1m) |
88.11 @ 1 kHz |
86.52 @ 1 kHz |
ENCLOSURE RECOMMENDATIONS
| Size |
Application |
Enclosure Type |
Volume (ft³) |
Port |
Tuning (Hz) |
Details |
| Type |
Dia. (in) |
Length (in) |
| 18" |
General
(most common) |
SBB4 - Loud Bass Response |
6.50-10.00 |
Round |
Two x 6 |
18" @ 6.50ft^3
11" @ 10.00ft^3 |
32 |
|
| 18" |
General |
SBB4 - Flat Response |
3.25-4.25 |
Round |
6 |
18" @ 3.25ft^3
13" @ 4.25ft^3 |
32 |
|
| 18" |
SQ |
QB3 - Low-Frequency Peak |
7.00-9.50 |
Round |
6 |
16" @ 7.00ft^3
11" @ 9.50ft^3 |
23 |
|
| 18" |
SQ |
QB3 - Flat Response |
6.50-8.50 |
Round |
6 |
25" @ 6.50ft^3
18" @ 8.50ft^3 |
20 |
|
