Description
Sundown Audio SDDN 18 D1
Designed in-house by Sundown Founder Jacob Fuller, the 3,500-watt RMS SDDN is available in 10, 12, 15, and 18-inch models. Each unit boasts a massive 83-pound motor with integrated thermal ventilation, featuring a custom cross-cut pole piece with a Neodymium cap for increased output and thermal control. Sundown’s signature Mega V2 cone is paired with a five-layer spider, a 3.3” x 80mm aluminum voice coil (dual 1-ohm), and dual tinsel leads per eight-gauge terminal.
Specifications
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RMS Power (D1)
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RE D1 (Ohms)
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FS D1 (Hz)
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VAS D1 (L)
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Qes D1
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Qms D1
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Qts D1
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Le D1 (mH)
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BL D1 (NA)
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Mms D1 (Grams)
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Cms D1 (uM/N)
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Sens D1 (dB @ 1w/1m)
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Xmax D1
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| Subwoofer Measurements | |
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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 | |
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Ported Enclosure Size
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Recommended Port Area
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Recommended Port Tuning
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| Sealed Enclosure Specs | |
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Sealed Enclosure Size
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| 4th Order Enclosure Specs | |
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4th Order Sealed Side
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4th Order Ported Side
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4th Order Port Area
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Specs
Re = 2.0333
Fs = 30.0404
Zmax = 33.3616
Qes = 0.3345
Qms = 5.1537
Qts = 0.3141
Le = 4.2364
Diam = 381.0000
Sd = 114009.1866
Vas = 72.2840
BL = 28.6825
Mms = 717.0201
Cms = 39.1469
Sensitivity 1w/1m = 89.4252
Xmax = 35mm
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