Specs
Type: 3-head, single compact cassette deck
Track System: 4-track, 2-channel stereo
Tape Speed: 4.75 cm/s
Heads: 1 x record, 1 x playback, 1 x erase
Motor: 2 x reel/assist, 1 x capstan
Tape Type: type I, CrO2, Metal
Noise Reduction: B, C
Headroom Extension: HX Pro
Frequency Response: 20Hz to 21kHz (Metal tape)
Signal to Noise Ratio: 70dB (dolby C)
Wow and Flutter: 0.025%
Total Harmonic Distortion: 1.0%
Input: 25mV (line), 0.2mV (mic)
Output: 0.58V (line)
Dimensions: 443 x 123 x 345mm
Weight: 7.2kg
Finish: black, silver
Year: 1983
Video
Photos
![Harman Kardon CD 491 repair. Inside View](http://mobilemodding.info/wp-content/uploads/2023/09/20230814_191533-scaled-e1695087012192-1024x768.jpg)
![Harman Kardon CD 491 repair. Tape Mech Motor](http://mobilemodding.info/wp-content/uploads/2023/09/20230814_191537-scaled.jpg)
![Harman Kardon CD 491 repair. Tape Mech Idler and Head Assembly](http://mobilemodding.info/wp-content/uploads/2023/09/20230814_191546-scaled.jpg)
![Harman Kardon CD 491 repair. Power Supply Board](http://mobilemodding.info/wp-content/uploads/2023/09/20230814_191551-scaled.jpg)
![Harman Kardon CD 491 repair. Main Board](http://mobilemodding.info/wp-content/uploads/2023/09/20230814_191605-scaled.jpg)
![Harman Kardon CD 491 repair. Power supply Board Top](http://mobilemodding.info/wp-content/uploads/2023/09/20230918_204611-1024x576.jpg)
![Harman Kardon CD 491 repair. Power supply Board Top](http://mobilemodding.info/wp-content/uploads/2023/09/20230918_204625-scaled.jpg)
![Harman Kardon CD 491 repair. Power supply Board Top](http://mobilemodding.info/wp-content/uploads/2023/09/20230918_204634-scaled.jpg)
![Harman Kardon CD 491 repair. Power supply Board Top](http://mobilemodding.info/wp-content/uploads/2023/09/20230918_204645-576x1024.jpg)