Sky High Car Audio FXXL Series 15" Subwoofer – 5000W RMS D1/D2 Ferrite Subwoofer

Sky High Car Audio FXXL Series 15" Subwoofer – 5000W RMS D1/D2 Ferrite Subwoofer
Sold by AudioSellerz.com

The Sky High Car Audio FXXL Series 15" Subwoofer is Sky High’s ferrite flagship in a big-cone package—built for brutal demo builds, competition lanes, and ultra-aggressive daily systems that live on real power. Rated at 5000 watts RMS, this 15 inch subwoofer uses a massive 4" 8-layer high-temperature voice coil and a towering quad-stack 9.96" Y35 ferrite motor to deliver extreme output, strong motor control, and serious thermal headroom when the volume knob stays buried.

That huge motor is packed with smart engineering: an aluminum shorting ring, pole vents, and (4) drilled and tapped backplate holes to help manage heat and give builders options for reinforced mounting or custom cooling tricks. The motor and vent layout are designed for maximum airflow and heat dissipation during high-output demos and showtime abuse.

On the moving side, the FXXL 15 shares the same design language as the rest of the FXXL line—using a large progressive spider pack, fiberglass cone support, and a hardened paper cone topped with a forged-carbon style dust cap. That combo keeps the assembly rigid and controlled at high excursion, while the precision-molded foam surround and internal pressure cap are tuned to survive big power and long throw without losing musicality.

Visually, the FXXL line sticks to Sky High’s stealth all-black styling with a tooled magnet boot, big push terminals, and a clean motor and basket design that looks as serious as it performs. If you’re chasing deep low-frequency extension, violent peak output, and real-world reliability on 5k-class power, this is the 15" to build your system around.

Available in dual 1 ohm (D1) and dual 2 ohm (D2) configurations, the FXXL Series 15" makes system design straightforward whether you’re running a single sub on a big Korean/Brazilian monoblock, or stacking multiple 15s in a wall, blow-through, or big SUV/van demo build.

Key Features – Sky High Car Audio FXXL 15" Subwoofer

• Size: 15 inch FXXL Series high-performance ferrite subwoofer

• RMS Power: 5000W RMS (when installed, wired, and cooled correctly)

• Voice Coil: 4" 8-layer high-temperature coil for extreme thermal handling

• Motor: Quad-stack 9.96" Y35 ferrite motor with aluminum shorting ring, pole vents, and tapped backplate holes for better cooling and mounting options

• Suspension: Oversized progressive spider pack, fiberglass cone support, and precision foam surround tuned for high excursion and control

• Cone Assembly: Hardened paper cone with forged-carbon style dust cap and internal pressure cap for added strength and pressure control

• Impedance Options: D1 and D2 dual-voice-coil options for flexible low-ohm wiring

• Application Range:

  • High-power ported 15" enclosures

  • 4th and 6th order bandpass builds

  • Walls, blow-throughs, and big SUV/van demo systems

  • Competition-leaning daily setups that need real 5k-class performance

The Sky High Car Audio FXXL Series 15" Subwoofer is for people who want a real flagship 15—huge motor, big coil, serious cooling, and the kind of mechanical package that’s been purpose-built to punish. Set it up right with proper electrical and a good box, and you’ve got a hero woofer for your next big build, backed by the team at AudioSellerz.com