Behringer B1200D-PRO Active 500-Watt 12" PA Subwoofer.

Here's What Behringer say: EUROLIVE B1200D-PRO Our EUROLIVE B1200D-PRO 500-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. Packed with a powerful 500-Watt Class-D amplifier, 15" long-excursion Low-Frequency (LF) transducer and an incredible array of professional features, the B1200DPRO produces extreme levels of low-end punch, with the definition and clarity typically reserved for much larger systems! Put simply, these cool-running systems are much lighter, making them ultra-easy to transport and set up and our no-compromise design means you get amazingly-deep, chest-pounding bass that will keep the party going all night long. Class-D - Massive Power, Perfect Sound 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. Custom-Engineered Transducers Powerful, high-efficiency Class-D amplifiers and Switch Mode Power Supply technology coupled with state-of-the-art DSP functionality sure sounds impressive but what about the part of the system you actually hear? Our LF transducers are designed specifically for each application its what sets us apart from the competition. When you buy a Behringer active subwoofer, you can rest assured that the transducer inside has been engineered to perform flawlessly with every other element for truly professional results. The B1200D-PRO active subwoofer is capable of extremely high sound pressure levels: 122 dB (Full Space, 1 W @ 1 m), with a frequency range of 45 - 180 Hz. Features High-performance 500-Watt powered subwoofer for PA applications Powerful 12'' long-excursion transducer with high temperature voice coil provides incredibly accurate and pulse-pounding bass Precise reproduction of ultra-low frequencies for "bulletproof" punch and impact State-of-the-art 500-Watt Class-D amplifier with comprehensive over-excursion, thermal and clip limit protection Built-in active stereo crossover provides high-pass filtered outputs for full-range loudspeakers Tuneable and switchable Bass Boost plus Phase switch for ultimate low-frequency performance Variable High Cut control for perfect sound alignment Subwoofer Level control to adjust the balance between subwoofer and the full-range speakers Power, Signal and Clip LEDs for perfect monitoring Intelligent limiter for maximum sound performance and woofer protection Internal switch-mode power supply for noise-free audio, superior transient response and very low power consumption Pole socket for mounting with commercial spacer poles Ergonomically shaped handles for easy transport Rugged steel grill for optimal speaker protection 3-Year Warranty Program* Designed and engineered in Germany