Experience deep, punchy bass with this 8-inch bass tube featuring a built-in amplifier. Designed for space-saving under-seat or trunk installation, it delivers up to 4200W PMPO for rich low-end sound. Easy to install and ideal for any car, it's perfect for music lovers seeking powerful bass without external amps. https://jxlindia.com/product/1063-10-inch-active-bass-tube/