High-Performance Active 3000-Watt PA Subwoofer with 15" TURBOSOUND Speaker and Built-In Stereo Crossover. urolive B1500XP 3000-Watt active subwoofer provides the ultimate in low-frequency reproduction, and the built-in stereo crossover makes it ideally suited for use with any of our active 2-way loudspeakers. Loaded with an all-new 3000-Watt Class-D amplifier, TURBOSOUND 15" long-excursion Low-Frequency (LF) transducer and an incredible array of professional features, the B1500XP produces extreme levels of low-end punch, with the definition and clarity typically reserved for much larger systems. Packaged in a completely redesigned and lightweight enclosure, the B1500XP is our most robust and articulate subwoofer design ever! Thanks to our revolutionary Class-D amplifier technology, we are able to provide you with enormous power and incredible sonic performance in an easy-to-use, ultra-portable and lightweight package. Class-D amplification makes all the difference, offering the ultimate in energy efficiency and eliminating the need for heavy power supplies and massive heat sinks. This amazing technology makes it possible to design and build extremely powerful products that are significantly lighter in weight than their traditional counterparts, while using less energy and protecting the environment. A world-leading British designer and manufacturer of professional loudspeaker systems, TURBOSOUND has been building cutting-edge speakers for more than 30 years, and won the venerable Queen's Award for Innovation numerous times for their highly acclaimed loudspeaker designs. You will find TURBOSOUND's distinguished products not only touring with the best-known international artists, but also in countless major venues worldwide.