Polaris Ranger under seat sub box
Polaris Ranger Under Seat Ported Sub Box – CNC DIY Kit
Upgrade your Polaris Ranger sound system with a precision-engineered under-seat ported sub box kit designed for serious bass without sacrificing space.
This CNC-cut DIY flat pack enclosure is built specifically to fit cleanly under the seat of full-size Polaris Rangers, giving you deep, tight low-end performance without paying custom shop prices.
Precision CNC Cut for Perfect Fit
Each kit is cut on our CNC router from waterproof Extira composite, delivering strength, durability, and moisture resistance far beyond standard MDF. Every panel is machined for accuracy, ensuring tight joints, easy alignment, and a professional finished enclosure.
Engineered for Easy Assembly
No measuring. No guesswork.
Just assemble and enjoy.
• Rabbeted top and bottom panels for perfect alignment
• Recessed PVC port integrated into face panel
• Precision cut speaker opening
• Flat pack design ships safely and affordably
• Designed for fast glue-and-screw assembly
All you need is wood glue, screws or brad nails, and your choice of finish (bedliner, carpet, paint, or raw).
Why Choose a DIY CNC Flat Pack?
A finished custom Ranger sub box can cost $400–$700+.
This kit gives you the same precision and performance at a fraction of the price — while letting you build and finish it your way.
Perfect for:
Polaris Ranger audio upgrades
UTV sound system builds
DIY audio enthusiasts
Off-road riders wanting stronger bass
Fast Shipping
All kits are cut to order and typically ship within 1–2 business days (often same day depending on production schedule).
What’s Included
All CNC-cut enclosure panels
Recessed port design
Precision speaker cutout
Ready-to-assemble flat pack kit
What You Supply
Glue
Screws or brad nails
Finish of your choice
Subwoofer & wiring
Built for UTV Audio Performance
This Ranger under-seat subwoofer enclosure is part of our expanding line of CNC-cut UTV audio fabrication kits, designed for riders who want professional results without custom shop pricing.
If you’re building a serious Polaris Ranger sound system, this is the cleanest and most affordable way to add hard-hitting bass.
Order today and build it this weekend.
