Triple Sundown Audio SAv3 8" Custom Subwoofer Enclosure – 3x 8-Inch Precision Ported Box

Designed specifically for three Sundown Audio SAv3 8" subwoofers, this custom enclosure from Basshead Supply is engineered for tight, punchy bass in a compact footprint. Whether you're building a clean daily system or adding to your SPL setup, this triple 8-inch subwoofer box offers precision tuning and handcrafted quality for real-world performance.

Performance Specifications – 3x SAv3 8" Subwoofer Enclosure

• Internal Volume: 1.7 cubic feet (net)
• Tuning Frequency: 35 Hz
• Port Area: 31.625 square inches
• Port Dimensions: 11″ x 2.875″
• Subwoofer Cutout Size: 7.375″ per sub
• Power Handling: Built to support up to 1500W RMS total

Build Quality & Construction Features

• Material: 3/4” (18mm) Russian Baltic Birch plywood
• Bracing: Internal 3/4″ (18mm) baffle braces for strength and control
• Finish: Carbon gray stain with protective polyurethane topcoat
• Assembly: Seamless screwless exterior with industrial-grade Titebond III adhesive
• Prewired: 10-gauge OFC wire with recessed satin nickel brass binding posts

External Dimensions

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

Made-to-Order Enclosure – Shipping & Return Policy

Build Time: 2–3 weeks (custom-built per order)
Return Policy: No refunds once cut-out process has begun

Handcrafted in the USA – Basshead Supply Branded Series 🇺🇸

This triple SAv3 8" subwoofer enclosure is part of our Basshead Supply “Branded Series,” offering subwoofer-specific designs for maximum output, clarity, and durability. Built by hand in the United States, every enclosure is made with care, precision, and passion.

Our screwless construction method ensures a flawless exterior, while the 13-ply birch framework guarantees long-lasting strength without the weight of MDF. With its compact size, aggressive tuning, and stylish gray stain finish, this custom 3x 8-inch subwoofer box stands out visually and sonically.

Get yours today and unleash the full potential of your triple Sundown Audio SAv3 8" setup with a box that’s built to perform—and built to last.