Harman Kardon PM645 User Manual

Detailed technical specifications for amplifier performance metrics.

Details on input signal requirements and tone adjustment capabilities.

Specifications for filters, physical size, weight, and power requirements.

Important safety and regional usage guidelines for the amplifier.

Explains high current delivery for improved dynamic range and reduced distortion.

Describes wide frequency response, improving transient response and phase linearity.

Details design choice of low feedback to enhance low distortion and wide bandwidth.

Highlights the use of discrete components for superior performance over integrated circuits.

Describes a unique protection system that safeguards amplifier and speakers without affecting sound.

Explains the exclusive feature for equalizing small speakers and enhancing bass response.

Guidelines on using correct AC voltage and proper handling of the power cord to prevent damage.

Recommendations for optimal placement and ensuring adequate ventilation for the unit.

Warnings against opening the cabinet and instructions for safe cleaning procedures.

Instructions for connecting external audio components like CD players and tape decks.

Detailed guide on how to correctly connect speaker systems, including polarity and impedance.

Controls for power on/off, indicators, and speaker system selection.

Adjustment knobs for Bass, Treble, and channel balance.

How to select audio sources and monitor tape recording/playback.

Explains switches for mode, filters, tape copy, and bass contour.

Instructions on how to adjust the sound volume safely and effectively.

Step-by-step guide for listening to records, radio broadcasts, and digital/video sources.

Instructions for recording audio to tape, playing tapes, and dubbing between tape decks.

Solutions for common problems related to power indication and audio output.

Guidance on resolving issues like reversed stereo channels, hum, noise, and overall poor sound quality.