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Sundown Audio

Sundown Audio X-18 v.3 X-Series 18" 2000W RMS Subwoofer

$1,104.99
SKU: X-18 v.3
UPC: 810111131315
Condition: New
Availability: SOLD OUT
Shipping: $49.99 (Fixed Shipping Cost)

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Descriptions

About: Sundown Audio X-18 v.3  X-Series 18" 2000W RMS Subwoofer

Designed with an extended pole piece and an incredible four inches of peak-to-peak excursion, the X v.3 is engineered for ultra-deep bass and high power handling. Engineered to set a new standard in the low-frequency/small-ported-box subwoofer category, the X Series can also work in up to a 50% larger enclosure if you desire even more low-end extension.

The X v.3 series differentiates itself with its incredibly linear suspension, ensuring the lowest level of bass extension in a small enclosure while maintaining extremely low levels of distortion. Notably, the v.3 series features a much larger motor structure (220mm vs. 190mm on the v.1 series), improved motor ventilation, and an all-new Mega-Roll v.2 surround, providing a more linear and rugged update to the world-famous Mega-Roll v.1 surround design.

Specifications:  

  • 2000 Watts RMS / 5000 Watts Peak
  • Dual 1 or 2 ohm voice coil
  • Made for extremely deep bass
  • Triple-stacked magnet
  • 3” voice coil
  • Hyper-extended pole

Enclosure Specifications:

  • Sealed Enclosure: N/A
  • Ported Enclosure: 7.00 cu ft
  • Recommended Tuning: 32hz
  • Recommended Port Area: 112 sq in
  • Displacement: 0.23 cu ft
  • Depth: 13.6" 
  • Outside Diameter: 18.42"
  • Cutout: 16.69"
Thiele-Small Parameters X-18 v.3 D1 X-18 v.3 D2
Dc Resistance (Re) 1.4 Ohms 3.2 Ohms
Resonance Frequency (Fs) 26.650 Hz 28.207 Hz
Equivalent Volume (Vas)  130.302 L 109.935 L
Electrical Factor (Qes) 0.526 0.657
Mechanical Factor (Qms) 2.793 3.091
Total Factor (Qts) 0.442 0.542
Bl Factor (BL) 14.543 20.854
Mechanical Mass (Mms) 474.114 g 504.115 g
Mechanical Compliance (Cms)
75.224 uM/N 63.154 uM/N
Sens (dB @ 1w/1m) 88.6 87.6
Xmax 30mm 30mm

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Most products include a limited one year manufacturer’s warranty covering defects in materials and workmanship under normal use. Warranty coverage does not apply to improper installation, misuse, or damage caused by operation outside manufacturer specifications. For complete warranty terms, exclusions, and claim procedures, please visit our full Warranty Policy page.

Most products include a limited one year manufacturer’s warranty covering defects in materials and workmanship under normal use. Warranty coverage does not apply to improper installation, misuse, or damage caused by operation outside manufacturer specifications. For complete warranty terms, exclusions, and claim procedures, please visit our full Warranty Policy page.

Fast shipping across Canada from our Toronto warehouse. Most orders ship within 1–2 business days. Shipping costs and delivery estimates are calculated at checkout. Returns are accepted on eligible items that are unused and in original packaging within our return period. For full details, please view our Shipping Policy and Returns & Exchanges Policy.

Please note that final sale, clearance, open-box, and refurbished items are not eligible for returns or refunds. These items may only be covered under their respective warranty or exchange terms where applicable. For full details regarding open-box items, please review our Open Box Policy.

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