Down4Sound Quad 6.5 OR 8" Custom Kerf Ported Subwoofer Box Subwoofer Enclosure
Many in-stock orders ship within 1-2 business days, but timing varies by item. Custom, built-to-order, oversized, special-order and supplier-direct products may need extra processing time. Free shipping applies to qualifying orders over $99 in the contiguous US. Approved returns may be subject to a restocking fee.
Most products are covered by the manufacturer's warranty against defects. Damage from over-powering or improper installation isn't covered — we'll help coordinate any valid claim.
Tell us your vehicle, subwoofers and electrical setup and our team will help you match the right gear. Reach out before you buy.
Subwoofer Wiring Diagram
Select your configuration to view possible wiring combinations.
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Diagrams are on our wiring diagram page.
CURRENTLY 3-4 WEEK BUILD TIME
Custom built Sub woofer Box, Each box is built to your exact wants and needs. Pictures are just examples of what we have built for customers in the past.
(HAND MADE IN THE USA)
ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE.
**Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs**
Authorized Down4Sound dealer at JS Ultimate Sounds. Free shipping on orders $99+.
