Yamaha K-640 specifications

Brand: Yamaha

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• Type: auto reverse, 2-head, single compact cassette deck
• Track System: 4-track, 2-channel stereo
• Tape speed: 4.8 cm/s
• Heads: 1 x record/playback, 1 x erase
• Motor:
• Tape Type: type I, CrO2, Metal
• Noise Reduction: B, C
• Headroom Extension: HX Pro
• Wow and Flutter: 0.08%
• Distortion:
• Frequency Response: 20Hz to 20kHz  (Metal)
• Signal to Noise Ratio: 75dB  (dolby C)
• Analogue Inputs:
• Analogue Outputs:
• Dimensions: 435 x 113.5 x 302.5 mm
• Weight: 5.2 kg
• Year: 1987
• Price: