Sky High Car Audio FMX Series 18" Subwoofer – 3500W RMS D1/D2

Sky High Car Audio FMX Series 18" Subwoofer – 3500W RMS D1/D2
Sold by AudioSellerz.com

The Sky High Car Audio FMX Series 18" Subwoofer is built for serious low-end junkies—big cone area, huge motor, and true high-power handling for walls, blow-throughs, and brutal demo systems. As part of the FMX “Forged to Perform. Built to Endure.” lineup (up to 3500W RMS), the 18 inch model brings maximum surface area and excursion to the table for deep, violent bass in large enclosures.

FMX was engineered from real-world abuse in loud daily and competition vehicles—not just spec sheet flex. The FMX 18 uses an overbuilt motor structure, high-temperature coil, and heavy-duty suspension to survive high clamp power and long demo sessions when you support it with the right electrical and enclosure design. This is the 18" you choose when you want show-level output that can still live in a daily-driven system.

Available in dual 1 ohm (D1) and dual 2 ohm (D2) voice coil options, the FMX Series 18" gives you flexible wiring choices for big Korean or Brazilian monoblocks, whether you’re running a single monster sub or multiple 18s in a wall or big SUV/van build.

Key Features – Sky High Car Audio FMX 18" Subwoofer

• Size: 18 inch FMX Series high-performance subwoofer

• RMS Power Class: Up to 3500W RMS (FMX family design and construction, built for high-power musical use when properly installed and tuned)

• Series: FMX – Forged to Perform. Built to Endure.

• Voice Coil Configuration:

  • Dual 1 ohm (D1)

  • Dual 2 ohm (D2)

• Motor Design: Overbuilt high-power motor engineered for strong motor force, high thermal capacity, and long-term reliability under abuse

• Suspension System: Heavy-duty surround and spider pack designed for high excursion and control at high power levels

• Performance Focus:

  • Massive low-frequency output with deep response

  • Stable performance on big power for demos and shows

  • Reliability when paired with proper electrical upgrades and enclosure design

• Ideal Install Types:

  • Large ported 18" enclosures in SUVs, vans, and blow-through builds

  • 4th and 6th order bandpass walls

  • Multi-18 setups for demo rigs and competition-leaning builds

  • High-output daily systems where you want true “big boy” 18" performance

If you’re ready to step into large-frame subs and want an 18 inch woofer that’s actually built for real power, the Sky High Car Audio FMX Series 18" Subwoofer delivers the kind of output, control, and durability serious bassheads are looking for—backed by the crew at AudioSellerz.com