Behringer Ultragain Pro MIC2200 Audiophile Vacuum Tube Microphone/Line Preamplifier Ultra-low noise discrete microphone/line preamplifier with hand-selected 12AX7 tube for ultra-musical sound Mic input stage based on discrete, conjugate transistor pair circuitry Ultra-wide bandwidth from 10 Hz to 200 kHz for open sound Integrated fully parametric EQs with dedicated center frequency, bandwidth and level controls Independent line driver for converting -10 dBV into +4 dBu pro level