




Sundown Audio X-Series v.2 6.5" Subwoofer
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Subwoofer Wiring Diagram
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- Power — 400 watts RMS
- Voice Coil — 2" diameter, 4-layer CCAW on Kapton former (1.4" winding height)
- Excursion — Xmax 16mm one-way by 70% BL
- Cone — Proprietary flat aluminum diaphragm
- Enclosure — Requires a small ported enclosure (mechanically limited)
This Listing Includes: (1) Sundown Audio X-Series v.2 6.5" Subwoofer
The X-6.5SW is Sundown Audio's first true subwoofer smaller than 8 inches. It uses a voice coil identical in winding dimensions to the SA-8 v.3 — a 2" diameter coil with a 1.4" winding height — for massive thermal power handling at 400 watts RMS. A copper pole cap reduces inductive distortion, integrated tinsel leads prevent lead slapping, and a proprietary flat aluminum diaphragm rides on a 2" 4-layer CCAW coil wound on a thick Kapton former. This woofer is mechanically limited and requires a small ported enclosure; a large or sealed box will substantially reduce mechanical power handling. Authorized Sundown Audio dealer at JS Ultimate Sounds. Free shipping on orders $99+.
Features
- Large noise-free pole vent design
- Spiral-cut basket venting technique unique to this model
- Copper pole cap for reduced inductive distortion
- Integrated tinsel leads to prevent lead slapping
- Proprietary flat aluminum diaphragm
Specifications
| RMS Power | 400 watts |
| Voice Coil | 2" diameter, 4-layer CCAW on Kapton former |
| Xmax | 16mm one-way by 70% BL |
| Cone | Flat aluminum diaphragm |
| Sealed Enclosure | 0.15 ft³ |
| Ported Enclosure | 0.25–0.33 ft³ (0.3 ft³ recommended) |
| Recommended Tuning | 32Hz |
| Recommended Port Area | 4 in² |
| Displacement | 0.05 ft³ |
| Depth | 4.00" |
| Outside Diameter | 6.75" |
| Cut-Out | 5.52" |


