E-Series V.4 12” Subwoofer
- 750 Watts RMS / 1500 Watts Peak
- Dual 2 or 4 ohm voice coils
- Optimized for ported enclosures
- Class-leading 14mm Xmax
- Double-stacked magnet
- Vented magnetic gap & pole piece for superior cooling
- High strength stamped steel frame
- High temp 4-layer copper voice coil wire
- High-quality push terminals
- Stitched-on Mini-XL tinsel leads
Through relentless research in our North Carolina Headquarters, Sundown optimized a 2.5” voice coil and a truly unique motor design to get the deepest possible bass response out of a 10” subwoofer.
The subwoofer showcases a distinctive motor design, featuring a heavily vented magnetic gap and solid pole piece, enabling exceptional thermal power handling. The spider itself is a high strength poly-cotton blend designed to handle the full capacity of the motor. To provide an additional level of ruggedness the spider is bolted down and glued to the frame. Its motor geometry allows for a remarkable 14mm one-way linear Xmax, delivering excursion equivalent to far larger cones.
Specifications
| T/S Specs |
E v.4 12" D2 |
E v.4 12" D4 |
|---|---|---|
| RE (Ohms) | 4.030 | 6.130 |
| FS (Hz) | 28.480 | 28.373 |
| VAS (L) | 53.059 | 54.292 |
| Qes | 0.509 | 0.570 |
| Qms | 5.249 | 3.542 |
| Qts | 0.464 | 0.491 |
| BL (NA) | 17.576 | 20.249 |
| Mms (Grams) | 217.987 | 213.033 |
| Cms (mm/N) | 143.258 | 146.589 |
| Sens (dB @ 1w/1m) | 85.7 | 85.3 |
| Xmax | 14mm | 14mm |
Enclosure Specs
- Ported Enclosure
- Size: 1.75 cu. ft. net
- Port Area: 26 sq. in.
- Port Tuning: 35 Hz
- Sealed Enclosure
- Not Recommended
- Displacement: 0.12 cu. ft.
- Depth: 6.50"
- Outside Diameter: 12.250"
- Cutout: 11.125"
Specifications
| T/S Specs | |
|---|---|
RMS Power (D4) |
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RMS Power (D2) |
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Peak Power (D2) |
|
Peak Power (D4) |
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RE D2 (Ohms) |
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RE D4 (Ohms) |
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FS D2 (Hz) |
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FS D4 (Hz) |
|
VAS D2 (L) |
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VAS D4 (L) |
|
Qes D2 |
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Qes D4 |
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Qms D2 |
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Qms D4 |
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Qts D2 |
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Qts D4 |
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Le D2 (mH) |
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Le D4 (mH) |
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BL D2 (NA) |
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BL D4 (NA) |
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Mms D2 (Grams) |
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Mms D4 (Grams) |
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Cms D2 (uM/N) |
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Cms D4 (uM/N) |
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Sens D2 (dB @ 1w/1m) |
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Sens D4 (dB @ 1w/1m) |
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Xmax D2 |
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Xmax D4 |
|
| Subwoofer Measurements | |
Documentation |
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Displacement (Inches) |
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Depth (Inches) |
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Cutout (Inches) |
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Motor Diameter (Inches) |
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| Ported Enclosure Specs | |
Ported Enclosure Size |
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Recommended Port Area |
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Recommended Port Tuning |
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| Sealed Enclosure Specs | |
Sealed Enclosure Size |
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| 4th Order Enclosure Specs | |
4th Order Sealed Side |
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4th Order Ported Side |
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4th Order Port Area |
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4th Order Port Length |
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