Sundown Audio

X-8 v.3 8-Inch 800W RMS Subwoofer

$389.99

SKU: X-8 V.3 D4

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Sundown Audio X-8 v.3 stands as a leading 8-inch subwoofer, celebrated for its performance and popularity over its 4+ years of production. Building upon previous generations, this v.3 model surpasses its predecessors with its advanced suspension design, meticulously optimized using Finite Element Analysis (FEA) for both the spider and surround. Constructed on a custom-tooled 8-inch frame, the X-8 v.3 maximizes performance potential. Its motor and coil assembly are engineered to handle approximately 20mm of linear x-max one-way, with a total peak-to-peak excursion around 2.4 inches before the coil exits the magnetic gap. Distortion is further minimized through an aluminum magnet ID shorting ring and other proprietary Sundown technologies. The subwoofer is rated at a conservative 800-watt RMS power handling. Recommended enclosure specifications include a sealed volume of 0.3-0.4 cubic feet or a ported volume of 0.75-1.0 cubic feet, with a recommended tuning frequency of 32Hz. Its physical dimensions feature a cut-out diameter of 7.36 inches and a mounting depth of 6.8 inches.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandSundown Audio
Part NumberX-8 V.3 D4
CategoryMobile Electronics

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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