Crossfire Audio C7 15" 4th Order Bandpass Subwoofer Box Plans
Subwoofer Box Plans for Crossfire Audio C7 15" – 4th Order Bandpass Enclosure
Build a brutally loud, deep‑hitting 4th order bandpass enclosure for the Crossfire Audio C7 15" subwoofer with these precision‑engineered subwoofer box plans. Designed for massive output, strong low‑end authority, and wide‑bandwidth performance, this enclosure unleashes the C7’s signature blend of power, clarity, and aggression.
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 huge bass 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 4th order bandpass layout
Designed For
Crossfire Audio C7 15" Subwoofer – 4th Order Bandpass Enclosure
- Woofer Type: Crossfire Audio C7 15
- Woofer Size: 15"
- Outside Dimensions: 48"W × 20"H × 21 3/8"D
- Tuning: 4th order bandpass (sealed + ported chambers engineered to manufacturer specs)
- Performance Notes: Built for aggressive output, deep low‑frequency punch, and wide‑bandwidth response with excellent cone control and airflow
May work for other 15" woofers — user discretion advised.
Why These Plans Perform
- Optimized specifically for the Crossfire C7 15"
- 4th order bandpass design delivers extreme output and strong low‑frequency authority
- Wide bandwidth response for loud, clean, musical performance
- Engineered for high‑power daily setups and demo‑style builds
- Smooth, predictable response thanks to properly balanced sealed and ported chambers
- Eliminates trial‑and‑error and prevents wasted materials