Subwoofer Box Plans for Sundown Audio SA Series 15" – Ported Enclosure
Build a clean, hard‑hitting ported enclosure for your Sundown Audio SA Series 15" subwoofer with these precision‑designed subwoofer box plans. Designed around Sundown’s recommended specifications, this enclosure delivers deep bass, strong low‑end extension, and reliable performance in a daily‑driven setup. These plans give you the accuracy and tuning needed to get the most out of your SA 15.
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 without paying custom‑shop prices.
What’s Included
- Downloadable ZIP file
- Multiple 3D rendering images
- Spec sheet with subwoofer & enclosure specs
- Professional optimized cut sheet with parts list
- Precision‑designed ported enclosure layout
Designed For
Sundown Audio SA Series 15" Subwoofer
- Woofer Type: Sundown SA 15
- Woofer Size: 15"
- Outside Dimensions: 15.75”H × 30”W × 22”D
- Tuning: 34Hz
- Based on manufacturer‑recommended specs
May work for other 15" woofers — user discretion advised.
Why These Plans Perform
- Optimized specifically for the Sundown SA 15
- Designed for deep, powerful bass with strong low‑frequency extension
- Smooth, predictable response thanks to proper port tuning
- Ideal for daily setups needing clean output and reliable performance
- Eliminates trial‑and‑error and wasted materials