TEAC MTT-256R Автор SOVA TEAC Calibration Test Tape MTT-256R Signal: 31.5Hz~10kHz -10dB +/- 0.1 dB (ref level: 0dB=250nWb/m), full track With voice guidance of each spot signal. Duration: 10min Purpose: Level, azimuth and frequency response. Коррекция 120мкс и 3180мкс