The Behringer DR18SUB from Sweetwater is a budget-friendly powered subwoofer with a walloping low end and a slew of handy features. The DR18SUB pumps out 2,400 watts of Class D amplification from its 18-inch custom-engineered driver to fortify your portable or permanent-install PA system. Capable of delivering up to 129dB over a 30Hz to 150Hz frequency range, the DR18SUB is suitable for everything from cafes to dance clubs, yet it remains lightweight for on-the-go musicians, mobile DJs, and on-call live sound reinforcement. With just the push of a button, you can switch the crossover point from 90Hz to 120Hz; the DR18SUB also includes a phase switch, and a built-in RMS and Peak Limiter to protect its low-frequency driver. Top it off with heavy-duty handles, a tough exterior, and a standard pole socket, and it’s easy to integrate the DR18SUB with your existing PA system.