Mobile Electronics› Power Accessories

Sundown Audio

U SERIES 6.5IN D2 (400WATTS) SUBWOOFER

$199.99

SKU: S0FJ SW-UV16.5D2

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Special Order
Ships in 4–6 weeks
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

U SERIES 6.5IN D2 (400WATTS) SUBWOOFER

MIA's Description

The Sundown Audio U-Series U-65SW v.1 is a 6.5-inch subwoofer designed for high performance. It features 500 Watts RMS and 1000 Watts Peak power handling, with dual 2-ohm voice coils for flexibility.

This subwoofer is optimized for small ported enclosures and includes an aluminum voice coil former for superior heat dissipation, a high-temperature copper voice coil, and a double-stitched surround. It also boasts a heavy-duty cast basket and spring-loaded terminals that accept up to 8-gauge wire.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSundown Audio
Part NumberS0FJ SW-UV16.5D2

Videos

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Beastmode Tiny Subs Sundown Audio U-6.5" Subwoofers
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The Loudest 6 Inch Woofers In Car Audio - Sundown Audio U-6.5 - 5,000 Watt SPL Test
sundown audio U series 6.5 flexing

sundown audio U series 6.5 flexing
Sundown Audio U6.5” Frequency Sweep/Musical Scores…126.98 @ 31hz Peak….111db Music Average!

Sundown Audio U6.5” Frequency Sweep/Musical Scores…126.98 @ 31hz Peak….111db Music Average!
Sundown Audio U6.5 (145+ at 26hz) And other random stuff.

Sundown Audio U6.5 (145+ at 26hz) And other random stuff.
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Sundown SA 6.5 subwoofers playing LOW 28hz
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This NEW Sundown 6.5” Sub is AMAZING!!
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TWENTY 6.5" SUNDOWN AUDIO SUBS INSANE DEMO !
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2- Sundown X-6.5s
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How Loud Can a HUGE 8" Subwoofer Get? | Sundown SA8
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Sundown Audio Most Powerful 6 Inch Subwoofer - 5,000 Watt SPL Test - Music Demo - Box Design
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Sundown audio u15 v1 floating shirt clamping 2kish
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Sundown SA 6.5 Subs
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14 SUNDOWN 6.5" SUBWOOFERS IS IMPRESSIVE
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Sundown Sa6.5 subwoofer testing

Buy with Confidence

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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