As for the lower end, IS series is comprised of two passive subwoofers, respectively equipped with a 1×8″ or a 1×12″ woofer.
The compact size of both boxes is ideal when it comes to integrating a low-end extension cabinet in a venue, without dragging too much attention to it. Needless to say, the keyword here is the ease of installation and unobtrusiveness. That’s why every single system in IS series comes with a smooth design, Phoenix connectors, black or white version.
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