Everything you need to know about the product
Upgrade your in-car audio with the FOCAL SUB 30 A4, a high-performance 12-inch subwoofer designed to deliver deep, powerful bass and superior sound dynamics. With a 250W RMS power rating and an oversized 120mm magnet, this sub is perfect for music lovers who crave impactful low-end performance.
Built with a rugged DFS® (Dual Fiberglass Structure) cone, the SUB 30 A4 is designed to resist distortion even at high volumes. Its spider decompression coil ensures optimal cooling and efficiency, making it ideal for both sealed and bass reflex enclosures.
Whether you're building a new system or upgrading your existing setup, the FOCAL SUB 30 A4 is your go-to solution for maximum bass performance. Engineered with precision acoustics and robust materials, it enhances every beat, thump, and rumble.
Discover what makes our products industry leaders.
Dual Fiberglass Structure cone is strong, reliable, and built for high SPL without distortion.
Delivers tight, punchy bass with clarity at sustained power levels.
Enhances bass response and overall efficiency.
Reduces heat build-up for prolonged performance and better durability.
Brings out every detail in your low-end frequencies for a dynamic listening experience.
Performs exceptionally in both sealed and ported (bass reflex) enclosures.
Proven acoustic engineering and premium build quality from Focal's French workshops.
A deep dive into our industry-leading technology and high-performance standards.
The SUB 30 A4 handles 250W RMS, making it well-suited to a wide range of car amplifiers.
Yes — it performs excellently in both sealed and bass reflex (ported) enclosures. A ported box will provide louder, deeper response with extended low frequencies.
DFS® stands for Dual Fiberglass Structure — a rugged cone material that resists distortion even at high volumes, designed for high SPL applications.
It features an oversized 120mm (4¾") magnet, which enhances bass response and overall efficiency.
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