Custom Enclosure for Sundown Audio NSv6 12" Subwoofer – 2.5 ft³ Ported High-Power Box

Maximize the performance of your Sundown Audio NSv6 12" subwoofer with this precision-built, handcrafted enclosure from Basshead Supply. Tuned for powerful low-end output and engineered for extreme durability, this box is designed to handle serious wattage while delivering unmatched sound clarity and strength.

Performance Specifications – NSv6 12" Subwoofer Enclosure

• Net Internal Volume: 2.5 cubic feet
• Tuning Frequency: 31 Hz – perfect for deep, controlled bass response
• Port Area: 35 square inches
• Port Dimensions: 14” x 2.5”
• Subwoofer Cutout Diameter: 11.01″
• Power Handling: Engineered to support high-output setups well beyond 2000W RMS

Premium Materials & Expert Construction

• Material: Full 1" thick Russian Baltic Birch plywood throughout
• Build: 17-ply birch veneer for superior rigidity and minimal resonance
• Finish: Carbon gray stain sealed with a durable polyurethane coat
• Assembly: Seamless, screwless exterior built with Titebond III adhesive for structural integrity
• Wiring: Prewired with 10-gauge OFC speaker wire
• Binding Posts: Recessed satin nickel brass terminals

Enclosure Dimensions

• Height: 16”
• Width: 27.375”
• Depth: 19”

Build Time & Refund Policy

Lead Time: 2–3 weeks from order date (custom fabrication)
Refunds: Not available once the cut-out phase begins

Made in the USA – Basshead Supply Branded Series 🇺🇸

This custom 12" enclosure for the Sundown Audio NSv6 is part of the premium “Branded Series” by Basshead Supply. Proudly built by hand in the United States, every box is made with precision, passion, and performance in mind.

With robust birch construction, expert port tuning, and a clean screwless design, this enclosure is built to bring out the best in your NSv6 12” subwoofer. Whether you're chasing SPL or clean daily output, this box delivers.

Order today and experience true subwoofer performance—custom-built, professionally finished, and ready to shake the block.