Integrated Amplifiers
Harman Kardon HK 990 Stereo Integrated Amplifier with Digital Room Correction and Dual Subwoofer Bass Management – Part III
- Written by Dr. David A. Rich
- Published on 03 November 2011
ARTICLE INDEX
- Harman Kardon HK 990 Stereo Integrated Amplifier with Digital Room Correction and Dual Subwoofer Bass Management – Part III
- Page 2: Construction of the Analog Blocks
- Page 3: Volume Control
- Page 4: Power Amplifier
- Page 5: Phono Stage
- Page 6: Headphone Stage
- Page 7: Analog Circuitry Connected to the DACs
- Page 8: Conclusions About the HK 990 Circuit Design
- Page 9: Tape Recorder Outputs and Tape Monitor Details
- Page 10: Proper Connection
- Page 11: Conclusions About HK990 Tape Recorder Functionality
- Page 12: Overall Conclusions
- All Pages
Page 11 of 12
Conclusions About HK990 Tape Recorder Functionality
Harman is to be congratulated for providing the dual-domain tape recorder interface. Regrettably, the front panel controls make it difficult to use. The quality of the internal ADC and DAC in the tape recorder path is disappointing. Mixing analog and digital connections to a CD-R or MiniDisc recorder can result in potentially damaging self-oscillation.
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