Triple Slapz Audio Oblivion 8" SUV / Hatchback Ported Subwoofer Box Plans
Subwoofer Box Plans for (3) Slapz Audio Oblivion 8" – Ported Enclosure
Build a shockingly powerful, deep‑hitting ported enclosure for three Slapz Audio Oblivion 8" subwoofers with these precision‑engineered SUV/Hatchback‑optimized subwoofer box plans. Designed to unleash the Oblivion series’ aggressive low‑end punch, fast transient response, and impressive output for their size, this enclosure delivers excellent cabin gain, efficient airflow, and clean daily performance.
The Oblivion 8 thrives in a properly tuned ported enclosure, and this design provides the ideal airspace, port area, and tuning frequency needed to maximize output while maintaining smooth, musical response.
Save Money — Build It Yourself
Stop wasting materials and guessing on dimensions. These DIY subwoofer box plans make it simple to build a professional‑grade enclosure at home — perfect for anyone wanting big bass from compact subs without paying custom‑shop prices.
What’s Included
- Downloadable ZIP file
- Multiple 3D rendering images
- Detailed spec sheet with subwoofer & enclosure specs
- Professional optimized cut sheet with parts list
- Precision‑designed ported enclosure layout
Designed For
Triple Slapz Audio Oblivion 8" Subwoofers – SUV/Hatchback Application
- Woofer Type: (3) Slapz Audio Oblivion 8
- Woofer Size: 8"
- Outside Dimensions: 13”H x 45”W x 14”D
- Tuning: 34Hz SUV/Hatchback‑optimized ported design
- Performance Notes: Engineered for punchy, deep bass with strong cabin gain and clean daily performance
May work for other 8" woofers — user discretion advised.
Why These Plans Perform
- Optimized specifically for triple Slapz Audio Oblivion 8" subs
- Designed for aggressive low‑end authority and clean daily performance
- SUV/Hatchback‑tuned for maximum cabin gain and efficiency
- Smooth, predictable response thanks to proper port tuning
- Ideal for daily setups needing clean, musical, and surprisingly powerful bass from compact drivers
- Eliminates trial‑and‑error and prevents wasted materials