Box subwoofers are passive bass speakers for cars that are already installed in a professionally designed enclosure and ready for immediate connection. This eliminates the need to build your own box and ensures that the subwoofer performs exactly as it should. Our range includes a wide variety of solutions, from compact 6.5" subwoofers in boxes suitable for smaller vehicles to popular and versatile 10" and 12" models. For true lovers of powerful bass, we also offer dual subwoofers in boxes that can create enormous acoustic pressure and fill the entire car with energy. All subwoofers in this category are passive, i.e., without a built-in amplifier, and therefore require connection to an external amplifier. If you are looking for a ready-made solution that will give you deep, powerful, and accurate bass without complicated installation, passive subwoofers in boxes are the right choice.