American Bass Dual 15" XMAXXX Monster Ported Enclosure

American Bass Dual XMAXXX Monster 15" Ported Enclosure is a purpose-built 9.0 cubic foot, 30 Hz-tuned box engineered for the XMAXXX Monster 15" subwoofer, delivering deep, controlled bass with tailored airspace. Handcrafted in the USA, it features a clean exterior with zero visible screw holes and an airtight, glued build for high-power installations.

• Net Volume: 9.0 cubic feet — provides ample airspace to support deep bass output and low-end extension for large 15" drivers.
• Tuning: 30 Hz — sets the port resonance to emphasize very low frequencies while maintaining control and excursion limits.
• Port Area: 130.0 sq in; Port Size: 20.0" x 6.5" — port geometry directly influences tuning stability and air movement for consistent bass response.
• Cutout: 14.25" — designed to accommodate a 15" sub with a proper mounting diameter.
• Construction: 1" (24mm) Russian Baltic Birch — 17 ply; Baffle: 1" front; Bracing: 1" center — provides rigidity, dimensional stability, and airtight integrity for demanding power.
• Finish: Carbon gray stain with polyurethane topcoat — durable, show-ready surface that resists wear in vehicle environments.
• Wiring: Pre-wired 10ga OFC with metal binding post — simplifies installation and ensures solid, low-resistance connections.
• Power Rating: High power systems — designed to perform with demanding amplifiers in trunk installations.
• Dimensions: Height 22.0", Width 47.75", Depth 24.375" — external footprint to verify fit in cargo or trunk cavities.
• Handcrafted in the USA — built by hand with attention to fit and finish; exterior screws are hidden for a clean look; fully glued with Titebond III for airtight integrity and long-term durability.
• Lead Time: Built to order. Ships in 2-3 weeks. All sales final.

This enclosure is ideal for high-power, 15" XMAXXX Monster setups where precise airspace and a stable 30 Hz tuning are critical. The combination of heavy Baltic birch construction, airtight glueing, and a clean, screw-free exterior supports both performance and aesthetics in a trunk or rear cabin install.