Sky High Car Audio

Sky High Car Audio FXB Series 6.5" Subwoofer – 400W RMS D2/D4

$124.95 USD

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Impedance D2 Ohms D4 Ohms

Sky High Car Audio FXB Series 6.5" Subwoofer – 400W RMS Dual 2 Ohm / Dual 4 Ohm
Sold by AudioSellerz.com

The Sky High Car Audio FXB Series 6.5" Subwoofer is a compact, high-output 6.5 inch car audio subwoofer built for people who want real performance in tight spaces. Part of the FXB line—“Sky High Performance. Everyday Price.”—this driver is engineered to deliver powerful, controlled bass without cutting corners where it matters.

Rated at 400W RMS, the FXB 6.5 is ideal for small custom boxes, under-seat or rear-deck enclosures, and multi-sub setups where you want a lot of cone area from smaller woofers. The FXB platform focuses on real-world output, reliable cooling, and consistent performance, making it an excellent choice for daily drivers and budget-conscious systems that still want to hit hard.

Key Features

Size: 6.5" FXB Series car audio subwoofer
Power Handling: ~400W RMS class (FXB series woofer in the “real power” budget line)
Impedance Options: Available in dual 2 ohm (D2) and dual 4 ohm (D4) for flexible wiring to different monoblock amplifiers
Design Focus:
- “Sky High Performance. Everyday Price.” FXB is built to bring strong bass to real-world budgets
- Tuned for powerful, controlled bass instead of just peak numbers
Use Case: Great for small enclosures, creative tight-space installs, and multi-6.5" bass arrays
Build Philosophy: Real-world output, reliable design, and no shortcuts in the key performance areas of motor, coil, and suspension

Whether you’re upgrading your daily driver or stacking multiple small subs in a custom build, the Sky High Car Audio FXB Series 6.5" Subwoofer gives you big bass in a small footprint with pricing and performance tuned for everyday car audio enthusiasts—sold and shipped by AudioSellerz.com

Helpful Audio Sellerz Links

Finishing a wiring install? Shop car audio power wire and ground wire, car audio fuse holders and fuse blocks, Big 3 upgrade kits, and Sky High Car Audio amp kits.

For more installation help, read the car audio wire gauge and fuse guide and the car audio grounding guide.

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Dealers, shops, installers, builders, and resellers who want to sell Sky High Car Audio products or other products offered by Audio Sellerz can apply for a wholesale or dealer account through AudioResellerz.com.