**********Ultra-efficient Class D 2.1 amplifier with 2 x 50 watt stereo output and an additional 100 watt passive subwoofer output perfect for home theaters, listening rooms, and small offices*****Front panel sub crossover frequency adjustment, sub level, tone, and volume controls provide the user with the ability to easily dial in their preferred sonic character*****Variety of inputs including Bluetooth, stereo RCA, and 3.5 mm Aux provide flexible options in application*****Rugged build with high-quality components and binding posts ensures a long life without audio quality degradation*****Sleek black aluminum enclosure is aesthetically attractive and unobtrusive