• Premium 18mm Baltic Birch Construction: Crafted from 13-ply Baltic Birch with a reinforced 1" (24mm) 17-ply baffle for exceptional rigidity, reduced flex, and superior acoustic performance.
• Deep, Accurate Bass Tuned to 30Hz: Engineered with a 3.5 cu ft net volume and a 46.5 sq in slot port (15.5" × 3") to deliver clean, low-frequency extension and powerful output.
• Seamless, High-End Exterior Finish: Built using a refined assembly process with no visible screw holes, then stained in carbon gray and sealed with a durable polyurethane coat for a premium custom look.
• High Power Handling Up to 1500W: Titebond III full-glue construction, baffle bracing, and heavy-duty materials ensure long-term reliability under demanding subwoofer setups.
• Premium Hardware & Pre-Wiring Included: Features satin nickel brass binding posts and pre-wired 10-gauge OFC internal wiring for maximum conductivity and easy installation.
• Universal 15" Fitment: Designed with a 14.125" cutout and optimized internal airspace to accommodate a wide range of 15" subwoofers.

Single Universal Birch 15"Ported  Subwoofer Box 1" Baffle Tuned To 30Hz

This Listing Includes:

• (1) 15" Net Ported Subwoofer Box

Experience elite bass performance with our premium 3.5 cu ft Baltic Birch ported enclosure. Crafted from 18mm 13-ply Birch and reinforced with a 1" (24mm) 17-ply baffle plus an integrated baffle brace, this enclosure delivers extreme rigidity while staying lightweight. Our refined assembly process eliminates all visible screw holes, leaving your box with a seamless, custom-built appearance.

Every enclosure is fully glued with Titebond III and finished in our signature carbon gray stain, topped with a polyurethane clearcoat. Satin Nickel Brass binding posts and 10GA OFC pre-wiring ensure maximum conductivity and reliability. Built strong enough to support subwoofer systems up to 1500W, this enclosure is designed for clean, deep, accurate bass at high output.

Specifications:

• Net Volume: 3.5 cu ft


• Tuning: 30Hz


• Port Area: 46.5 sq in


• Port Dimensions: 15.5" Ã 3"


• Subwoofer Cutout: 14.125"


• Wood Thickness: 3/4" (18mm) Baltic Birch


• Baffle: 1" (24mm) solid birch, 17-ply


• Construction: 13-ply Baltic Birch panels


• Finish: Carbon gray stain + polyurethane


• Hardware: Satin Nickel Brass binding posts


• Internal Wiring: 10GA OFC

Dimensions:

• Height: 17â€


• Width: 29.5â€


• Depth: 20â€