Low profile sub cabinet with high power subdriver and built-in digital amplifier. Stereo inputs on combo connectors, parallel with RCA inputs, accept most line signal types. A filtered signal feeds bass to half of the integral amplifier, which in turn powers the sub driver, governed by a sub level control. The remaining amplifier capacity is fed to left and right speaker outputs, capable of powering 2 or 4 full range satellite speakers to make a complete bi-amped system. 2-band EQ and master volume controls help balance and tailor the output to the surroundings. Can be orientated forward facing for stage work or downward for minimal footprint in small to medium venues.