
The Story
JBL S2-1224SS
12" (300mm) Slipstream ported enclosure
Our patented port brings the bass, not the noise.
Series II enclosure deliver the enhanced efficiency and higher output of a vented enclosure, without the distracting noise or “chuffing” generated by a port. The patented Slipstream port dramatically reduces port noise at high sound pressure levels by minimizing airflow turbulence.
With high-roll surrounds, proprietary cone design and long-excursion, Series II enclosure deliver deep, powerful bass, with greater accuracy than conventional ported boxes. And the exclusive SSI™ (Smart Selectable Impedance) switch lets you choose 2- or 4-ohm impedance for maximum configuration flexibility.
It’s everything you want in a compact, easily installed enclosure.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
JBL S2-1224SS
12" (300mm) Slipstream ported enclosure
Our patented port brings the bass, not the noise.
Series II enclosure deliver the enhanced efficiency and higher output of a vented enclosure, without the distracting noise or “chuffing” generated by a port. The patented Slipstream port dramatically reduces port noise at high sound pressure levels by minimizing airflow turbulence.
With high-roll surrounds, proprietary cone design and long-excursion, Series II enclosure deliver deep, powerful bass, with greater accuracy than conventional ported boxes. And the exclusive SSI™ (Smart Selectable Impedance) switch lets you choose 2- or 4-ohm impedance for maximum configuration flexibility.
It’s everything you want in a compact, easily installed enclosure.






















