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Sundown Audio U-Series v.1 15" Subwoofer
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Subwoofer Wiring Diagram
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- RMS Power — 1,500W (3,000W peak)
- Excursion — 30mm Xmax
- Impedance — Dual 2-ohm or dual 4-ohm
- Sensitivity — 91.2 dB (D2) / 90.2 dB (D4) @ 1W/1m
- Enclosure — 2.0 cu ft sealed or 3.0 cu ft ported, tuned to 35 Hz
This Listing Includes: (1) Sundown Audio U-Series v.1 15″ Subwoofer
The U-Series is Sundown's premier standard-suspension woofer and the most direct successor to the famous Z v.3 line. The 15" v.1 is rated at 1,500W RMS (3,000W peak) and moves air with a 30mm Xmax and a large 1,141.9 cm² cone area, giving it 91.2 dB sensitivity in the dual 2-ohm version. It works in a 2.0 cu ft sealed box or a 3.0 cu ft ported box tuned to 35 Hz, and it also suits 4th-order bandpass builds.
Specifications
| RMS Power | 1,500W |
| Peak Power | 3,000W |
| Impedance | Dual 2-ohm or Dual 4-ohm |
| Xmax | 30mm |
| Mounting Depth | 9.05" |
| Outside Diameter | 15.59" |
| Cutout Diameter | 14.01" |
| Motor Diameter | 9.68" |
| Displacement | 0.24 cu ft |
| Sealed Enclosure | 2.0 cu ft |
| Ported Enclosure | 3.0 cu ft, tuned to 35 Hz, 48 sq in port area |
| 4th Order Bandpass | 1.5 cu ft sealed / 4.5 cu ft ported, 90 sq in port, 6" port length |
| RE (D2 / D4) | 3.8 / 6.1 ohms |
| FS (D2 / D4) | 37.9 / 34.9 Hz |
| VAS (D2 / D4) | 54.0 / 63.9 L |
| Qts (D2 / D4) | 0.31 / 0.35 |
| Le (D2 / D4) | 2.44 / 3.80 mH |
| BL (D2 / D4) | 30.7 / 34.6 |
| Mms (D2 / D4) | 355.7 / 353.0 g |
| Sensitivity (D2 / D4) | 91.2 dB / 90.2 dB @ 1W/1m |


