Dual 15 Inch Ported Subwoofer Box Design - CT SOUNDS

Dual 15 Inch Ported Subwoofer Box Design

Regular price 91% OFF Before: $49.99 Sale pricePrice: $4.44

The dual 15-inch ported subwoofer box design provides you with the blueprints to build your own ported subwoofer box. This dual 15-in sub-box design has a volume of 7.00 ftand a tuning frequency of 31 Hz. 

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

Port Size: 18.5” X 3” X 14.5”

*Note: All box designs are non-returnable. There is no refund on box designs. 

Customer Reviews

Based on 16 reviews
Trent C. (Des Moines, IA)
Fast shipping, amazing products!

Haven't gotten them installed yet, but looking forward to it!

BILLY C. (Abilene, TX)
Box design

Went back to ported enclosure for my son's truck. Been a while since I designed one, so I ordered a design. The build sheet was very helpful and this thing bangs! Can't wait to see what I am gonna order next.

Russell P. (Dickson, TN)
Woke my meso 15s up

Gets low. Easy to follow plans.


Easy to follow building directions

James b. (Garland, TX)
$5 cut sheet

2 deaf bonce mf-15r's on a 5k doing a 147.7 with this box design. Added a double baffle and made the box 4in taller and 4in narrower to fit the car.