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Sundown Audio

Sundown Audio NS-18 v.6 Nightshade NS-Series 18" 3000W RMS Car Subwoofer

$1,988.99
$1,693.99
(You save $295.00 )
SKU: NS v.6 18”
UPC: 810111132770
Condition: New
Availability: Usually Ships in 1-2 Days
Shipping: $50.00 (Fixed Shipping Cost)
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Descriptions

About: Sundown Audio NS-18 v.6 Nightshade NS-Series 18" 3000W RMS Car Subwoofer

The Nightshade 3,000-watt Neodymium sub is engineered to deliver incredibly powerful low end, with an extremely linear excursion and next-level thermal management. It features an eight-layer voice coil for excellent power handling and an extended shorting ring to minimize distortion and deliver a smooth, highly accurate sound at extreme SPL levels.

Specifications: 

  • 3000 Watt RMS / 7000 Watt Peak
  • Dual 1 or 2 ohm voice coils
  • Optional carbon cone/dustcap available
  • Custom tooled basket
  • Custom-tooled ultra-linear spider packs
  • Extended shorting ring
  • Eight-layer voice coil
  • Custom tooled basket
  • Cast aluminum cooling ring
  • Ultra-linear spider pack
  • Unique air exchanging system forces hot air out and cool air in
  • Aluminum vent ring
  • Ultra-linear Mega Roll V2 surround 

Enclosure Specifications: 

  • Sealed Enclosure: Not Recommended  
  • Ported Enclosure: 7 cu ft 
  • Recommended Tuning: 32Hz
  • Recommended Port Area: 100 sq in 
  • Displacement: 0.27 cu ft 
  • Depth: 16.30" 
  • Outside Diameter: 18.62" 
  • Cut-Out: 16.69" 
Thiele-Small Parameters NS-18 v.6 D1 NS-18 v.6 D2
Dc Resistance (Re) 1.8090 Ohms 3.6629 Ohms
Resonance Frequency (Fs) 28.6283 Hz 28.3677 Hz
Equivalent Volume (Vas)  78.9335 L 82.9318 L
Electrical Factor (Qes) 0.4955 0.4948
Mechanical Factor (Qms) 5.2141 5.1127
Total Factor (Qts) 0.4525 0.4511
Inductance (Le)
1.7089 mH 3.3898 mH
Bl Factor (BL) 21.7903 30.4106
Mechanical Mass (Mms) 722.9906 g

700.8333 g

Mechanical Compliance (Cms)
42.7481 uM/N 44.9135 uM/N
Sens (dB @ 1w/1m) 87.4738 87.5755
Xmax 35 mm 35 mm

 

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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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