The EUROLIVE B615D 1500W active loudspeaker is exactly what youve come to expect from BEHRINGER “ massive output power, more features and absolutely more affordable! Behringer's engineers have really outdone themselves, creating a self- contained PA solution that merges state-of-the-art Class-D power amp technology, an ultra-low noise Mic/ Line input section with Volume control, integrated DSP and exceptional portability. Then they loaded the B615D with their best 15' long-excursion driver for incredibly deep bass, and a state-of-the-art 1.75'' titanium-diaphragm compression driver for exceptional high-frequency reproduction. The B615D professional active loudspeaker is destined to become a legend in its own right, alongside the other EUROLIVE models.Class-D - Massive Power, Perfect SoundThanks 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.Bi-Amplification - The Path to Absolute Signal IntegrityWith its Class-D amplifiers powering the high- and low-frequency drivers separately, courtesy of true bi-amping (2 amplifiers per loudspeaker), the B615D delivers high-resolution sound that really brings out the best in your music. While some of our competitors apply simple passive crossovers, which inacc