1200 Watt Max Dual 12" Terminator Series Loaded Subwoofer Bass System with Amplifier and Bass Knob Included Discover the ultimate bass experience with the MTX Audio Terminator Series which comes in a set of 1200W 12-inch subwoofer enclosures and a 250-watt monoblock amplifier Start the party in your car with the MTX Party Pack with the enclosure that is designed to deliver powerful bass, each subwoofer handles 200W RMS which totals to 400W RMS for the full enclosure Enclosure is made of very sturdy 5/8 inch medium density fiberboard to ensure that it can contain the subwoofer's low-frequency sound waves without difficulty MTX Audio TNP212D enclosure reaches frequency response 37-150Hz and is designed to work with the included monoblock amplifier; Which is simple to connect to any source, even factory radios RMS can reach 600W and it has a single 4 ohm voice coil per sub with an already pre-wired to 2 ohms while the whole speaker system is 3.875 in height, 29.625 wide, and 13.875 inches in diameter