Dual 12 Inch Front PORTED Subwoofer Box Design (Ideal for Bio 12" Subs)

Blueprints (only) – How to make (NOT the actual box)

A PDF of the blueprint (box design) will be emailed in approximately 30 minutes after you order. If you don’t receive it, please check your spam folder or contact us at hello@ctsounds.com.

Note: All box-designs (blueprints) are non-returnable. There is no refund on box-designs.