In Phase XTB-8A 8" Active Subwoofer 600W Powered Bass Box Amp + Remote & Quick

600W Max / 200W RMS Power Output. Boost your car audio with theIn Phase XTB-8A — a compact yet powerful 8" active subwoofer enclosure built for clean, deep bass and easy installation. With600W max power and a built-in Class D amplifier, this sub is perfect for underseat or boot-mounted installs where space is limited but performance is essential.

eBay