The STX1200.4D amplifier is designed for car audio enthusiasts seeking high-performance sound across multiple channels. With a total max power of 1200 watts, this Class D amplifier delivers RMS power of 60W x 4 @ 4 ohms, 75W x 4 @ 2 ohms, and 140W x 2 when bridged at 4 ohms, making it versatile for a variety of audio configurations. Whether you're driving subwoofers, midrange, or high-frequency speakers, the STX1200.4D ensures powerful, clear sound. Constructed using advanced SMT and double-sided PCB technology, this amplifier is built for durability and consistent performance. Its adjustable low-pass and high-pass filters allow precise control over the audio output, letting you optimize your sound to fit your system perfectly. With frequency adjustments ranging from 35Hz to 250Hz, you can easily tailor the audio to suit your needs. Safety is a priority with the STX1200.4D. The amplifier includes overload protection and is capable of handling a maximum current draw of 26A, ensuring reliable performance even during demanding use. It also features thermal protection at 80°C (176°F), preventing overheating and ensuring the amplifier remains safe to operate. Compact in size, measuring only 4.6 x 4.8 x 2 inches, the STX1200.4D fits seamlessly into any vehicle, delivering powerful sound without taking up too much space.