FXXL Series
Sky High Car Audio FXXL Series Subwoofers
Available in 12” – 18” | D1/D2 Ohm Options
Our Ferrite Flagship.
Purpose Built to Punish
The FXXL Series from Sky High Car Audio is the peak of subwoofer engineering—our no-compromise solution for those who demand maximum output, precision control, and true competition-grade performance. Backed by years of technical experience and hands-on development across multiple high-performance audio brands, the FXXL Series reflects the very best of everything we’ve learned in one elite platform.
Sky High Car Audio is proud to partner with Hunter Martin from EZ DB’s, one of the most respected and proven enclosure designers in the industry. We’ll be offering FREE box designs—including ported, 4th order, and 6th order options where applicable—tailored specifically for our subwoofers to ensure maximum performance and reliability. Every SHCA subwoofer is tested using DATS-LA, measured with the backplate off the surface after full break-in, ensuring accurate and trustworthy TS data.
SHCA-FXXL-12
SHCA-FXXL-15
SHCA-FXXL-18
FXXL: Purpose Built to Punish
Welcome to the Sky High Car Audio Revolution.