SONY DTC-690   Parametry: Type: digital audio tape deck Track System: 2-channel stereo Tape Speed: 4.075, 8.15 mm/s Recording Time: 240 minutes Heads: 2000rpm, rotary D/A Converter: 1-bit A/D Converter: 1-bit Sampling Frequency: 48, 44.1, 32kHz    48 kHz: For analog and digital input signals in a standard mode.    44.1 kHz: For compact disc and pre-recorded DAT tape.    32 kHz: For analog input signals in a long-play mode. Freq