Sundown Audio U-Series v.1 12" Subwoofer
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Subwoofer Wiring Diagram
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- RMS Power — 1,500W (same coil as the X v.2 series)
- Voice Coil — 3″ diameter, 4-layer aluminum winding on aluminum former, 2.36″ long
- Motor — Double-stacked 8.66″ Y35 ferrite, 0.6″ top-plate, 5mm aluminum shorting ring, 0.6″ pole extension
- Impedance — Dual 2-ohm or dual 4-ohm
This Listing Includes: (1) Sundown Audio U-Series v.1 12″ Subwoofer
The Sundown U-Series is the brand’s premier standard-suspension woofer and the most direct replacement for the famous Z v.3 line. It starts with a double-stacked 8.66″ Y35 ferrite motor on a one-piece bumped T-yoke with a 0.6″ top-plate, a 5mm aluminum magnet-ID shorting ring to level inductance over stroke, and a 0.6″ pole extension to keep the coil controlled at high excursion. The 3″ diameter, 2.36″ long 4-layer aluminum coil is the same unit used in the X v.2 series, giving the U the same 1,500-watt RMS rating. Cooling comes from a high-velocity pole vent, ten back-plate air-gap vents, and cast-aluminum vented frame spacer rings, while a new cast-aluminum frame allows taller, more excursion-capable cones than the Z v.3. Optimized for small ported or bandpass enclosures, the U-Series sounds like the SA series but handles significantly more power. Authorized Sundown Audio dealer at JS Ultimate Sounds. Free shipping on orders $99+.
Features
- Black aluminum 3″ voice coil former for superior heat dissipation
- Double-stacked Y35 ferrite motor with magnet-ID shorting ring and rear pole/gap venting
- Heavy-duty cast aluminum basket with cast-aluminum vented frame spacer ring
- Double-stitched surround and stitched-on double-XL tinsel leads
- Spring-loaded terminals accept up to 8 gauge; optimized for small ported or bandpass enclosures
Specifications
| RMS Power | 1,500W |
| Impedance | Dual 2-ohm or Dual 4-ohm |
| Voice Coil | 3″ diameter, 4-layer aluminum, 2.36″ long |
| RE (D2 / D4) | 3.8 / 6.1 ohms |
| FS (D2 / D4) | 42.2 / 40.0 Hz |
| VAS (D2 / D4) | 17.9 / 12.3 L |
| Qts (D2 / D4) | 0.27 / 0.34 |
| Le (D2 / D4) | 2.41 / 3.67 mH |
| BL (D2 / D4) | 31.2 / 33.7 |
| Mms (D2 / D4) | 290.2 / 284.5 g |
| Sensitivity (D2 / D4) | 88.4 dB / 85.0 dB @ 1w/1m |
