Triple Sundown Audio SAv3 8" Custom Subwoofer Enclosure – 1.7 ft³ Ported Bass Box

Specifically designed for three Sundown Audio SAv3 8" subwoofers, this handcrafted enclosure from Basshead Supply delivers clean, punchy bass in a compact and powerful layout. Built with premium Baltic Birch and precision tuned for performance, this triple 8" ported box is made to slam hard while fitting tight spaces.

Performance Specifications – 3x SAv3 8" Subwoofer Enclosure

• Net Internal Volume: 1.7 cubic feet
• Tuning Frequency: 35 Hz – ideal for responsive, musical bass
• Port Area: 31.625 square inches
• Port Dimensions: 11″ x 2.875″
• Subwoofer Cutout Diameter: 7.375″ (each subwoofer)
• Power Handling: Supports up to 1500W RMS total (3x 500W RMS subs)

Premium Materials & Expert Construction

• Material: 3/4” (18mm) Russian Baltic Birch plywood
• Bracing: Internal 3/4” center baffle braces for added structural support
• Build: 13-ply birch veneer construction – durable and lightweight
• Finish: Carbon gray stain with protective polyurethane clear coat
• Assembly: Seamless screwless design using Titebond III wood glue
• Wiring: Pre-wired with 10-gauge OFC speaker wire
• Terminal: Recessed satin nickel brass binding posts

Enclosure Dimensions

• Height: 12.5″
• Width: 32.5″
• Depth: 15″

Build Timeline & Return Policy

Lead Time: 2–3 weeks (custom-built)
Return Policy: No refunds after enclosure is cut (made-to-order)

Made in the USA – Basshead Supply Branded Series 🇺🇸

This triple 8" custom subwoofer enclosure for Sundown Audio SAv3 is part of our exclusive Branded Series, engineered for max performance in a space-efficient design. Proudly handcrafted in the United States, it combines precision tuning, pro-level craftsmanship, and a clean, modern aesthetic.

Whether you’re building a trunk setup, behind-the-seat solution, or space-conscious SPL rig, this box delivers aggressive low-end while maintaining tight response. Built strong, wired right, and stained with a unique carbon gray finish—it’s everything a prefab box isn’t.

Order yours today and experience what custom-tuned, triple 8" enclosures are truly capable of—only from Basshead Supply.