Everything you need to know about the product
The Focal ISUB ACTIVE 2.1 is a space-saving, high-performance solution for upgrading your vehicle's factory sound system. This innovative 2-channel amplifier and subwoofer combination is designed to deliver dynamic bass response (260W) while also amplifying your front speakers — providing a complete audio boost from a single compact unit.
With its Plug and Play integration, this active subwoofer connects directly to your OEM head unit's speaker outputs — no complex rewiring or modifications needed. Whether you're short on boot space or simply want a clean audio upgrade, the ISUB ACTIVE 2.1 fits discreetly under a seat or inside the cabin while delivering the deep, full-range bass your factory system is missing.
Ideal for vehicles with tight space and factory systems lacking punch, this system gives you the Focal signature sound with minimal installation time.
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Combines a subwoofer with a built-in 2-channel amplifier section, boosting both bass and front speaker output from a single unit.
Delivers powerful dynamic low-frequency response for a noticeable and immediate improvement over factory audio.
Connects directly to your factory head unit's speaker outputs — no cutting, splicing, or system modifications required.
Compact form factor installs neatly under a seat or inside the cabin, preserving your boot space entirely.
Unlike a standard sub, the ISUB ACTIVE 2.1 also amplifies the front speakers for a balanced full-system upgrade in one installation.
Engineered by Focal — a world leader in high-end audio — for accurate, musical sound that goes beyond simple bass addition.
A deep dive into our industry-leading technology and high-performance standards.
The 2.1 version includes a 2-channel amplifier section that also powers the front speakers, delivering a complete system upgrade rather than bass-only enhancement.
Yes, it uses Plug and Play connectivity from the OEM head unit's speaker outputs with no complex wiring modifications.
260W for the subwoofer channel; the 2-channel section amplifies the front speakers for a balanced audio upgrade across the whole system.
Yes, its compact design is intended for under-seat or in-cabin installation, leaving your boot completely free.
It is designed to connect to OEM head unit speaker outputs in most vehicles. Contact us to confirm compatibility with your specific make and model.
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