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Sundown Audio

Sundown Audio SA-18 v.2 SA-Series 18" 1000W RMS Car Subwoofer

$514.26
$649.99
21% Off
SKU: SA-18 v.2
UPC: 810111130387
Condition: New
Availability: Usually Ships in 1-2 Days
Shipping: Calculated at Checkout

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Descriptions

About: Sundown Audio SA-18 v.2 SA-Series 18" 1000W RMS Car Subwoofer

A top-down improvement from previous models, the SA 18-inch sub features the largest motor in the series, now delivering over 35mm of mechanical excursion. The 2.75” coil punches way above its weight, outperforming most 3” coils without adding mass. The motor also features a large magnet shorting ring (faraday ring) to reduce distortion and deliver smoother response across the entire acoustic spectrum. The motor and coil setup is mated to an extremely robust double-layer spider with fully tied-on & doubled-up “XL” tinsel leads. A competition-grade paper cone and a strong foam surround were used to complete this masterpiece.

Specifications: 

  • 1000 Watts RMS / 2500 Watts Peak
  • Dual 2 or 4 ohm voice coils
  • Vented magnetic gap & pole piece
  • Aluminum 2.75” voice coil former for superior heat dissipation
  • Innovative high velocity, cast aluminum vented frame spacer ring
  • Magnet ID faraday ring for smooth acoustic response
  • High-temperature copper voice coil wire
  • Spring-loaded terminals
  • Stitched-on double “XL” tinsel leads

Enclosure Specifications: 

  • Sealed Enclosure: 3.5 cu ft
  • Ported Enclosure: 4.5 cu ft
  • Recommended Tuning: 35Hz
  • Recommended Port Area: 64 sq in
  • Displacement: 0.2 cu ft
  • Depth: 10.125"
  • Outside Diameter: 18.62"
  • Cut-Out: 16.69″
Thiele-Small ParametersSA-18 v.2 D2SA-18 v.2 D4
Dc Resistance (Re) 3.97 Ohms 6.06 Ohms
Resonance Frequency (Fs) 29.051 Hz 31.868 Hz
Equivalent Volume (Vas) 114.234 L 106.964 L
Electrical Factor (Qes) 0.424 0.458
Mechanical Factor (Qms) 3.052 2.853
Total Factor (Qts) 0.372 0.395
Inductance (Le) 3.6326 mH 4.7903 mH
Bl Factor (BL) 32.523 38.159
Mechanical Mass (Mms) 619.174 g 549.519 g
Mechanical Compliance (Cms) 48.474 uM/N 45.389 uM/N
Sens (dB @ 1w/1m) 90.1 90.7
Xmax 19mm 19mm

 

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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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