product description:
![](https://ground-shaker.com/images/products/30hz212b-1_1936371373.jpg "BLACK 12\")
BLACK 12\
competition sub boxBest Cheap Online Shopping Site - Join Our shop to browse millions of cost-efficient products with high quality that make your shopping fun and rewarding.
BLACK 12\
competition sub boxBest Cheap Online Shopping Site - Join Our shop to browse millions of cost-efficient products with high quality that make your shopping fun and rewarding.
Product reviews:
Leonard
2026-02-21 iphone 11 Pro
EARTHQUAKE SOUND HOLEES 12\ competition sub box
competition sub box
Harriet
2026-02-24 iphone 7
Reinforced Competition Ported Sub Box competition sub box
competition sub box
Ian
2026-02-23 iphone SE
BLACK 12\ competition sub box
competition sub box
Customer Reviews:
| Full Name: | |
| Title: | |
| Description: | |
| Rating Value: | |
| Time: | 2026-02-24 19:01:57 |
Customers who viewed this item also viewed:
![competition sub box](https://ground-shaker.com/images/products/30hz112b-1_178916817.jpg "BLACK 12\")
![competition sub box](https://cdn11.bigcommerce.com/s-h3htvj6/images/stencil/1280x1280/products/7555/46259/1__87442.1563983822.jpg "12\")
![competition sub box](http://www.procustomscables.com/images/products/30hz112b-4.jpg "BLACK 12\")
![competition sub box](https://i.pinimg.com/564x/55/90/86/559086f13df0b36b3ced004100d2fcae.jpg "12\")
![competition sub box](https://ground-shaker.com/images/products/30hz212b-7.jpg "BLACK 12\")
![competition sub box](https://cdn11.bigcommerce.com/s-h3htvj6/images/stencil/1280x1280/products/7556/46350/1__40225.1564043853.jpg "Ground Shaker 30HZ212B Dual 12\")
![competition sub box](https://images.subwoofer.biz/l-m/12-single-competition-ported-sub-box-ground.jpg "12\")
![competition sub box](https://ground-shaker.com/images/products/30hz110b-3.jpg "BLACK 10\")
![competition sub box](https://cdn.shopify.com/s/files/1/1690/0705/products/BoxTerminal_8e637c91-0954-48a3-8a7e-2f9259e13f8f_450x450.jpg "10\")
![competition sub box](https://img-s.yoybuy.com/images/I/91drfMFPY%2BL.jpg "Harmony Audio HA-ML151 Monolith 15\")
![competition sub box](https://cdn11.bigcommerce.com/s-reotp/images/stencil/1200x1200/products/31279/6437372/1870286__75473.1602876372.jpg "American Bass HD10D2 HD 10\")
![competition sub box](https://cdn11.bigcommerce.com/s-reotp/images/stencil/1200x1200/products/31282/6437560/1870292__93534.1602876475.jpg "American Bass HD12D1 HD 12\")
![competition sub box](http://www.carstereo.com/images/classifieds/speaker%200011.jpg "15\")
![competition sub box](https://ground-shaker.com/images/products/30hz28b-2.jpg "BLACK 8\")
![competition sub box](https://i5.walmartimages.com/asr/6012c9da-2387-4c45-ae18-df2f6dbd3dd6_1.bbfe771bdf98a4f64d140b1ff7f352a1.jpeg "MTX 7515-44 15\")
![competition sub box](https://www.kicker.com/app/products/caraudio/loaded_enclosures/comp16/p43_tc104/images/480x360-front.jpg "Comp 10\")
![competition sub box](https://www.kicker.com/app/products/caraudio/loaded_enclosures/comp16/p43_tc104/images/group1.jpg "Comp 10\")
