While the DR18SUB 18"" 2400W Active Pa Powered Subwoofer with Built-In Stereo Crossover may appear to be a standard subwoofer, it is a powerful, high-quality, and reliable audio equipment that offers superior low-frequency reproduction. This professional-grade subwoofer is ideally suited for use with any active 2-way loudspeakers, thanks to its built-in stereo crossover. Driven by a robust 2400-Watt Class-d amplifier, this subwoofer features an 18"" long-excursion subwoofer and an array of professional features. It is designed to produce extreme levels of deep punch, along with the definition and clarity typically associated with larger systems. The DR18SUB is equipped with a revolutionary Class-d amplifier and state-of-the-art Dsp technology. This combination provides you with immense power and exceptional sonic performance in an easy-to-use, ultra-portable, and lightweight package. The built-in intelligent limiter ensures your subwoofer is protected from burnout, allowing for continuous, high-quality sound production. Our custom-engineered Lf transducers are designed specifically for each application, ensuring flawless performance in conjunction with every other element. This results in massive quantities of extreme deep bass with low distortion and high sound pressure output. The DR18SUB features balanced Xlr inputs and outputs, as well as optional output modes for multiple preferences. It also includes a Level knob for controlling the input gain, and a Phase switch for compensating for frequency cancellation between the subwoofer and satellite speakers. This versatile subwoofer can deliver high sound pressure levels, up to 129 dB over a 30 to 150 Hz frequency range. It also includes a standard 35 mm (1.375"") pole socket for pole-mounting your full range satellite loudspeakers. Whether you're running sound for a jazz combo in a dinner club or serving up pulse-pounding techno at a large dance club, the DR18SUB 18"" 2400W Active Pa Powered Subwoofer with Built-In Stereo Crossover is the perfect choice for any music application..