U-Series 6.5" v.1 Subwoofer
Regular price
$199.99 USD
Regular price
Sale price
$199.99 USD
Shipping calculated at checkout.
Notice On Packaging For Subwoofers
Sundown Audio has led the industry in quality and performance for over a decade. To improve accuracy and transparency, we have updated our subwoofer power ratings to reflect true real-world performance.
During this transition, some packaging may show previous ratings. Performance fully aligns with our current published specifications. If you have any questions about authenticity or ratings, please contact directly for confirmation.
- 500 Watts RMS/1000 Watts Peak
- Dual 2 or 4 ohm voice coils
- Optimized for small ported enclosures
- Aluminum 1.75” voice coil former for superior heat dissipation
- High-temperature copper voice coil
- Double stitched surround
- Heavy-duty cast basket
- Spring-loaded terminals accept up to 8-gauge wire
- Stitched-on heavy-duty tinsel leads
- Solid pole with vent channels and aluminum shorting ring cap
- Rear gap-venting
- Top-Plate Cooling Channels
| Specification | U6.5v2 D2 | U6.5v2 D4 |
|---|---|---|
| Fs | 41.95 Hz | 38.69 Hz |
| Re | 4.05 Ω | 6.62 Ω |
| Qms | 8.5800 | 7.2400 |
| Qes | 0.5200 | 0.5000 |
| Qts | 0.4900 | 0.4600 |
| Mms | 137.25 g | 124.35 g |
| Cms | 104.85 µm/N | 136.06 µm/N |
| Sd | 126.6 cm² | 126.6 cm² |
| Vas | 2.9 L | 3.77 L |
| Sensitivity | 80.0 dB | 78.1 dB |
| BL | 16.740 T·m | 20.000 T·m |
| Le | 4.01 mH | 5.58 mH |
| X-Max | 19 mm | 19 mm |
| RMS Power | 500 W | 500 W |
| Peak Power | 1000 W | 1000 W |
| Specification | U6.5v2 D2/D4 |
|---|---|
| Overall Diameter | 7.17" |
| Cutout Diameter | 5.94" |
| Motor Diameter | 5.51" |
| Mounting Depth | 5.71" |
| Displacement | 0.40 Cu. Ft. |
| Sealed Volume | 0.125 cu ft |
| Ported Volume | 0.25 cu ft |
| Port Tuning | 35 Hz |
| Port Area | 4-5 sq in |
| 4th Order Sealed | 0.09 cu ft |
| 4th Order Ported | 2.25 cu ft |
| 4th Order Port Area | 5.5 sq in |
| 4th Order Port Length | 6" |
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