Dual Sundown Audio Xv3 10" Custom Subwoofer Enclosure – 3.0 ft³ Ported SPL Box

Built specifically for dual Sundown Audio Xv3 10" subwoofers, this high-performance enclosure from Basshead Supply is designed for accurate tuning, deep bass response, and rock-solid strength. Whether you're building a loud daily driver or prepping for SPL competition, this box delivers.

Performance Specifications – Xv3 10" Dual Subwoofer Box

• Net Internal Volume: 3.0 cubic feet
• Tuning Frequency: 32 Hz – perfect for low, clean daily bass
• Port Area: 42 square inches
• Port Dimensions: 12″ x 3.5″
• Subwoofer Cutout Diameter: 10.01″ (each sub)
• Power Handling: Built to handle high-output systems up to 4000W RMS total

Premium Build Quality & Materials

• Material: Full 1” Russian Baltic Birch plywood – no MDF used
• Baffle: 1” thick with 24mm internal bracing for dual sub support
• Construction: Seamless screwless build using Titebond III adhesive
• Finish: Carbon gray stain with polyurethane protective coat
• Wiring: Prewired with 10-gauge OFC speaker wire
• Terminals: Recessed satin nickel brass binding posts

Enclosure Dimensions

• Height: 14″
• Width: 30.75″
• Depth: 23″

Custom Build Info – Lead Time & Refund Policy

Lead Time: 2–3 weeks (made to order)
Refunds: Not available after cut-out process begins (custom fabrication)

Made in the USA – Basshead Supply Branded Series 🇺🇸

This dual 10" custom enclosure for Sundown Xv3 subwoofers is part of the elite “Branded Series” by Basshead Supply. Built by hand in the United States, every box is engineered to deliver serious output, long-lasting performance, and a premium fit and finish.

Constructed with rugged birch plywood and finished with our signature carbon gray stain, this enclosure features no visible screws, clean lines, and a pro-audio aesthetic. Whether you're after thunderous lows or clean musical response, this box delivers both style and substance.

Order today and give your Sundown Audio Xv3 10s the ultimate ported enclosure—built to perform, built to last, and built with pride.