This is a used product that has been professionally rebuilt here at Sundown Audio. It comes with a non-doa warranty only. That means they are guaranteed to work when you receive it but no further warranty afterwards. Let us know within 24 hours of delivery if this product has an issue. We will not warranty any used subwoofer after that time. These potentially have scratches & scuffs on the magnets/motors and will not be in new condition.
- 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) | 3.90 | 7.34 |
| FS (Hz) | 27.4407 | 27.1207 |
| VAS (L) | 36.1729 | 39.9739 |
| Qes | 0.5687 | 0.6299 |
| Qms | 4.9232 | 4.6994 |
| Qts | 0.5098 | 0.5554 |
| Le (mH) | 5.8856 | 9.1167 |
| BL (NA) | 14.4713 | 18.0508 |
| Mms (Grams) | 177.0601 | 164.0278 |
| Cms (uM/N) | 189.9892 | 209.9529 |
| Sens (dB @ 1w/1m) | 82.93 | 82.77 |
| Xmax | 14.5mm | 14.5mm |
| T/S SPECS | SD-4 10″ D2 | SD-4 10″ D4 |
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Enclosure Specifications
| Sealed Enclosure | 0.5-0.75 cu ft |
| Ported Enclosure | Not Recommended |
| Recommended Tuning | N/A |
| Recommended Port Area | N/A |
| Displacement | 0.09 cu ft |
| Depth | 4.43″ |
| Outside Diameter | 10.86" |
| Cut-Out | 9.20" |
| Physical Dimensions | Download |