Avid MBox Mini w/ Pro Tools. Microphone Signal-to-Noise Ratio (SNR): -106 dB, Line Signal-to-Noise Ratio (SNR): -106 dB, Frequency response: 20 - 20000 Hz. Input impedance: 20000 Ом, Microphone input impedance: 4400 Ом. Balanced line output level: 7.08 V. Minimum RAM: 2048 MB. Bundled software: Pro Tools 9