Warm Audio WA73-EQ, 1-Channel Microphone Preamp with Equaliser, In the British 1073 style, Discrete Class A circuit, Carnhill transformer, 80 dB gain, Incremented potentiometer, Tone button for switching the input impedance, Switch for phase reversal, 3-Band induction coil EQ low-band boost/cut: 35, 60, 110, 220 Hz, Mid-band boost/cut: 360, 700, 1600, 3200, 4800, 7200 Hz, Treble-band boost/cut: 10, 12, 16 kHz, Additional treble band EQ points, LED meter, 48V Phantom power, Integrated 115/230 V power supply unit, Build: 19"" / 1 U@+*Connections:*@+@+, Microphone input: XLR, Line-input: 6.3 mm jack, Instrument input: 6.3 mm jack, Insert input and output: 6.3 mm jack, Line output: XLR and 6.3 mm jack