- RMS 600 watts
- Dual 2 or 4 ohm voice coils
- Optimized for small, sealed enclosures
- Lightweight Neodymium motor
- Computer-optimized foam “w” surround
- Two-inch 8-layer copper voice coil
- Large aluminum Faraday ring for smooth acoustic response
- Patented high strength cast aluminum frame
- Low distortion motor construction
- High-temperature voice coil wire
- Spring-loaded terminals
- Stitched-on tinsel lead wires
The SD-4 series truly is a world-class sound quality woofer with low mounting depth, small box requirements, yet extraordinarily high power handling. It's the ideal choice for anyone seeking a high-quality, low-mounting-depth subwoofer that performs hammers in small enclosures. With enhanced mechanical durability and superb sound quality, you get the perfect marriage of form and function.
Specifications
| RE (Ohms) |
3.93 |
7.01 |
| FS (Hz) |
26.0429 |
26.7489 |
| VAS (L) |
63.5142 |
64.3194 |
| Qes |
0.6187 |
0.7374 |
| Qms |
5.4253 |
5.5061 |
| Qts |
0.5554 |
0.6503 |
| Le (mH) |
6.2790 |
8.6610 |
| BL (NA) |
14.9216 |
17.9033 |
| Mms (Grams) |
214.4713 |
200.7540 |
| Cms (uM/N) |
174.1371 |
176.3448 |
| Sens (dB @ 1w/1m) |
84.33 |
83.97 |
| Xmax |
14.5mm |
14.5mm |
| T/S SPECS |
SD-4 12″ D2 |
SD-4 12″ D4 |
Enclosure Specifications
| Sealed Enclosure |
0.8-1.0 cu ft |
| Ported Enclosure |
Not Recommended |
| Recommended Tuning |
N/A |
| Recommended Port Area |
N/A |
| Displacement |
0.1 cu ft |
| Depth |
4.91″ |
| Outside Diameter |
12.51" |
| Cut-Out |
10.94" |
| Physical Dimensions |
Download |
