Enhance your car audio with this 8‑inch Active Bass Tube Subwoofer featuring a built‑in 4200 W (PMPO) amplifier. Its vented tubular design delivers deep, thumping bass down to ~30 Hz with low distortion. Compact yet powerful, it’s easy to install and ideal for tight boot or under‑seat placement in most vehicles, delivering rich, immersive sound. https://jxlindia.com/product/8018-8-inch-active-bass-tube/