Sundown Audio
SUNDOWN AUDIO U SERIES V2 18" SUBWOOFER
- Regular price
- $619.99 USD
- Regular price
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- Sale price
- $619.99 USD
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Features (U-10 / 12 / 15 / 18)
- Black Aluminum 3” voice coil former for superior heat dissipation
- High Temperature Round-Wire CCAW voice coil with high-temp black adhesive
- Double stitched surround
- Heavy duty cast basket
- Spring loaded terminals accept up to 8 gauge
- Stitched-on double-XL tinsel leads
- Rear vented pole piece
- Rear drilled gap-venting
- Innovative high-velocity cast aluminum vented frame spacer ring
- Magnet ID shorting ring
- Top-Plate Cooling Channels
- Cast Aluminum surround bolt-on rings
- Optimized for small ported or bandpass enclosures
U-18
| T/S SPECS | U 18" D2 | U 18" D4 |
|---|---|---|
| RE (Ohms) | 3.8 | 6.1 |
| FS (Hz) | 31.3 | 31.4 |
| VAS (L) | 135.4 | 135.4 |
| Qes | 0.37 | 0.42 |
| Qms | 3.41 | 3.55 |
| Qts | 0.33 | 0.38 |
| Le (mH) | 2.62 | 3.97 |
| BL (NA) | 29.9 | 35.3 |
| Mms (Grams) | 444.1 | 441.3 |
| Cms (uM/N) | 0.06 | 0.06 |
| Sens (dB @ 1w/1m) | 92.3db | 91.8db |
U-15
| Sealed Enclosure | 2.0 cu ft |
| Ported Enclosure | 3.0 cu ft |
| Recommended Tuning | 35Hz |
| Recommended Port Area | 48 sq in |
| Displacement | 0.24 cu ft |
| Depth | 9.05″ |
| Outside Diameter | 15.59″ |
| Cut-Out | 14.01″ |
| Physical Dimensions | Download |
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