Behringer 73; 500 Series Microphone / Line Preamplifier with Midas Input and Output Transformers; based on the classic 1073 design; Class A, all discrete signal path; electronically controlled resistor-stepped 80 dB rotary gain switch; Trim level control (-20 up to +5) with integrated phantom power switch; Illuminated switches for Phase, Hi/Lo Impedance and Front/Rear Input selection; connections: Mic / Line Input XLR / 6.3 mm Jack Combo; design: 500 Series Modul