Connector: Four balanced XLR jacks 99003803000 Mic Phantom Power: 48V Equivalent Input Noise: -129 dBu Frequency Response: +/- 0.1 dB, 20 Hz - 20 kHz Dynamic Range: 105 dB / 107 dB A-weighted THD + N: 0.0007% (-103 dB) Mic EIN: -129 dBu Input Sensitivity: +2.2 dBu Input Impedance: 2K Ohm Gain Range: +18 – +65 dB