Two large Sundown Audio SDDN 18" Limited Edition Competition Subwoofers, prominently displaying the Sundown Audio brand logos, feature a sleek, modern design and deliver an impressive 3,500 watts RMS. One subwoofer is positioned to show its front, while the other is angled to reveal the back and side components with a Neodymium cap.
An impressive, black Sundown Audio SDDN 18" Limited Edition Competition Subwoofer D1 3500W boasts a sleek design with the Sundown Audio logo prominently displayed on its cone. It features a neodymium cap and delivers powerful sound with its glossy finish gleaming against the white background, highlighting both its substantial size and exquisite craftsmanship.
Introducing the Sundown Audio SDDN 18" Limited Edition Competition Subwoofer D1 3500W by Sundown Audio: a sleek black subwoofer notable for its large metallic top and robust frame, tailor-made for audio systems. Equipped with dual 1-ohm coils and reinforced with multiple structural supports, this powerhouse delivers an impressive output of 500 watts RMS, demonstrating its remarkable ability to produce deep bass sounds.
This image features the Sundown Audio SDDN 18" Limited Edition Competition Subwoofer D1 3500W, boasting a robust design with a black and gray exterior and a shiny metallic base. Its sturdy frame and visible cone structure are designed to deliver powerful audio performance, highlighting its potential for high output.
The Sundown Audio SDDN 18" Limited Edition Competition Subwoofer D1 3500W showcases a large black design with silver and black casing, adorned with the Sundown Audio logo on its cone, offering impressive 500 watts RMS power. Its design features a prominent rubber surround and metallic accents, enhanced by a neodymium cap, elegantly displayed on a reflective surface.
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Two large Sundown Audio SDDN 18" Limited Edition Competition Subwoofers, prominently displaying the Sundown Audio brand logos, feature a sleek, modern design and deliver an impressive 3,500 watts RMS. One subwoofer is positioned to show its front, while the other is angled to reveal the back and side components with a Neodymium cap.An impressive, black Sundown Audio SDDN 18" Limited Edition Competition Subwoofer D1 3500W boasts a sleek design with the Sundown Audio logo prominently displayed on its cone. It features a neodymium cap and delivers powerful sound with its glossy finish gleaming against the white background, highlighting both its substantial size and exquisite craftsmanship.Introducing the Sundown Audio SDDN 18" Limited Edition Competition Subwoofer D1 3500W by Sundown Audio: a sleek black subwoofer notable for its large metallic top and robust frame, tailor-made for audio systems. Equipped with dual 1-ohm coils and reinforced with multiple structural supports, this powerhouse delivers an impressive output of 500 watts RMS, demonstrating its remarkable ability to produce deep bass sounds.This image features the Sundown Audio SDDN 18" Limited Edition Competition Subwoofer D1 3500W, boasting a robust design with a black and gray exterior and a shiny metallic base. Its sturdy frame and visible cone structure are designed to deliver powerful audio performance, highlighting its potential for high output.The Sundown Audio SDDN 18" Limited Edition Competition Subwoofer D1 3500W showcases a large black design with silver and black casing, adorned with the Sundown Audio logo on its cone, offering impressive 500 watts RMS power. Its design features a prominent rubber surround and metallic accents, enhanced by a neodymium cap, elegantly displayed on a reflective surface.

Sundown Audio SDDN 18" Limited Edition Competition Subwoofer D1 3500W

Sundown AudioSKU: SW-SDDN18D1
Price:
$1,499.99
Stock:
Available

Description

  • 3,500 watts RMS
  • Available in 10 through 18-inch versions
  • Dual 1 ohm coils
  • Mega V2 Cone
  • Aluminum 3.3” x  80mm coil
  • Dual 8 AWG terminals with dual-layer tinsel leads
  • Custom cross-cut pole piece with Neodymium cap for increased output and thermal control
  • 5-layer spider
  • 1,336 oz (83.5 lbs) magnet with integrated thermal ventilation
  • Optimized for Ported & 6th order enclosures
  • Carbon cone upgrade available 

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

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

The technical diagram of the Sundown Audio SDDN 18" Limited Edition Competition Subwoofer D1 3500W, a product of Sundown Audio, provides detailed measurements for the cutout (16.7), outer diameter (18.47), and depth (15.12). Equipped with a Neodymium cap, this subwoofer supports 500 watts RMS, with its precise dimensions and angles meticulously documented.

Specifications

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