ART Tube MP Project Series USB, Tube microphone preamplifier, 70 dB Gain, FET Limiter, Selectable input impedance, LED Metering, +48V phantom power, XLR and jack inputs and outputs, Switchable phase invert, Switchable low cut filter, Variable input and output controls, USB 1.1 output, Runs on Windows 98 SE or higher/MAC OS 9.1 or higher, Dimensions: 44.5 x 150 x 165 mm, Weight: 1.14 kg