Oktava MKL-111, tube microphone, double sided capsule with monolithic electrode, Polar Pattern: Omni-directional / Hypercardoid / Figure-of-eight, Frequency Response: 20hz to 20kHz, Sensitivity: 20 / 25 / 35 mV/Pa, Power supply unit supplied, Output Impedance: 300 Ohms nominal, Minimum load impedance: 1 k Ohms, Max SPL @ 1kHz: > 136dB, Signal-to-noise ratio: 69 / 71 / 74 dB, heavy brass body, preamp schematic is based on the vintage hand selected triode EC92, includes shockmount, Dimesions: diameter 64 ? 255 mm, Weight: 1,5kg