Technics RS-9900 Dane techniczne: Type: 3-head, single compact cassette deck Track System: 4-track, 2-channel stereo Tape Speed: 4.8 cm/s Heads: 1 x record, 1 x playback, 1 x erase Motor: 2 x reel, 1 x capstan Tape Type: type I, CrO2 Noise Reduction: B Frequency Response: 25Hz to 20kHz  (Cr02 tape) Signal to Noise Ratio: 67dB  (dolby B) Wow and Flutter: 0.04% Total Harmonic Distortion: 1.4% Input: 60mV (line), 0.25mV (mic) O