Sundown Audio NSv6 Nightshade 12” 3500W Subwoofer Package – Single 12 Box Combo

Extreme Power Meets Precision Engineering

The Sundown Audio Nightshade NSv6 12” Subwoofer Package is the ultimate solution for serious bassheads who demand unmatched power and accuracy. Rated at 3500W RMS / 7000W Peak, this NS-Series powerhouse is paired with a custom single 12 enclosure from Basshead Supply, designed specifically to maximize output and sound quality.

Built to handle extreme daily abuse and competition-level SPL, the NSv6 Nightshade 12 delivers ground-shaking lows with exceptional clarity, thanks to its advanced engineering and premium materials.

Subwoofer Highlights – Sundown Audio NSv6 12” 3500W

• Power Handling: 3500 Watts RMS / 7000 Watts Peak

• Voice Coil Options: Dual 1Ω or Dual 2Ω

• Optional Upgrades: Carbon fiber cone & dustcap

• Eight-Layer Voice Coil for maximum thermal endurance

• Custom-Tooled Ultra-Linear Spider Packs for precise control

• Extended Shorting Ring reduces distortion at high excursion

• Cast Aluminum Cooling Ring for superior heat dissipation

• Unique Air-Exchange System forces hot air out, pulls cool air in

• Ultra-Linear Mega Roll V2 Surround for extreme excursion and accuracy

• Custom Basket & Aluminum Vent Ring engineered for strength and airflow

T/S Parameters (NSv6 12”):

• Resonance (Fs): ~37 Hz

• Xmax: 35mm

• Sensitivity: ~83 dB @ 1W/1m

• Mms: ~455g

• BL: 20–28 NA (depending on coil config)

Custom Enclosure Specs – Built in the USA

This combo package includes a handcrafted Basshead Supply Branded Series enclosure, perfectly tuned for the NSv6 12 to bring out its full potential.

• Internal Volume: 2.5 cu ft net

• Tuning Frequency: 31 Hz for deep, accurate low end

• Port Area: 35 sq in (14” x 2.5” slot port)

• Material: 1” Baltic Birch (17-ply veneer construction)

• Finish: Gray stain with polyurethane topcoat for durability & style

• Build Quality: Zero visible screw holes, precision glued with Titebond III

• Pre-Wired: Satin Nickel Brass binding posts with OFC 10g wire

• Cutout Diameter: 11.01”

• External Dimensions: 16” H x 27.375” W x 19” D

⚠️ Note: Each enclosure is custom-built to order. Lead time is 2–3 weeks. No refunds once cutting begins.

Why Choose the NSv6 Sub + Custom Box Combo?

When paired with a box specifically designed for its motor and suspension system, the Sundown Audio Nightshade NSv6 reaches its full potential—delivering devastating lows with unmatched precision. Unlike generic prefab boxes, this enclosure is tuned and braced for maximum SPL and daily reliability.

At Basshead Supply, our enclosures are:

• Built by hand in the USA

• Engineered for strength, performance, and aesthetics

• Finished with a unique carbon gray stain that stands out from the crowd

Perfect For

• SPL competitors looking for high-output setups

• Daily drivers who want extreme bass without sacrificing sound quality

• Bassheads seeking a complete plug-and-play subwoofer + enclosure combo