Specifications: Microphone inputs (Mic Preamp) Type: XLR, electronically balanced, discrete input circuit. Frequency response: Line input Type: ¼” TRS connector, electronically balanced Impedance: approx. 20 kOmh bal/ 10 kOmh unbal. Max. input level +22dBu Main outputs Type: XLR, electronically balanced and ¼” TRS balanced “D” Mix only: ¼” connector unbalanced Impedance: approx 240 Omh symm / 120 Ohm unbalanced Max. output level: + 28 dBu + 22 dBu (“D” Mix) Power Supply Main voltage: 100 to 240 V – 50/60Hz