Digital loudspeaker management system.Internal DSP software.No external software needed, ever; updates via web.GUI software downloadable.Two input/six output configuration.Two USB jacks on front panel.AES-EBU digital Input.48 kHz sample rate, 24-bit 256x over-sampled Delta-Sigma AD, DA.Built-in signal generator (white, pink, sine).Built-in Feedback Ferret.Programmable delay on all inputs an outputs (diplayed in milliseconds, feet and meters).Parametric (outputs) & graphic (inputs) EQ.27-band Graphic EQ Autograph® algorithm for automatic EQ settings.XLR input for optional PVR 2 measurement microphone on front panel with +48V phantom power.Compressor/limiter on all inputs and outputs.Fully adjustable crossover with Butterworth, Bessel and Linkwitz-Riley filters up to 48dB/Octave.Any combination of input to output is user configurable to match your system needs.8 user presets.Large-easy-to-read LCD screen.Dimensions (HxWxD): 1.75" (45 mm) x 19" (483 mm) x 8.5" (216 mm)Weight: 7 lbs (3.18 Kg)