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Important safety notices regarding electrical hazards, moisture, and proper use.
Overview of the Crown Power Line Four as a high output stereo amplifier for audio enthusiasts.
Details the amplifier's output capability, distortion, noise, LED indicators, and protection features.
Guidelines for servicing the unit, including returning for repair and warranty claims.
Defines technical terms related to audio equipment and signal processing across multiple pages.
Lists general technical specifications including hum, noise, impedance, protection, power, and physical dimensions.
Details stereo output power, frequency response, and distortion metrics for 8 and 4 ohm loads.
Details mono output power, frequency response, and distortion metrics for 16 and 8 ohm loads.
Visual representations of amplifier performance characteristics like frequency and phase response.
Instructions for inspecting the unit for damage upon arrival and listing supplied accessories.
Guidelines for mounting the amplifier in a rack or cabinet, emphasizing ventilation.
Important safety and operational guidelines to prevent damage and ensure proper use.
Diagram showing the physical dimensions and rack mounting specifications.
Describes the front panel controls and indicators of the amplifier.
Details rear panel connectors, switches, fuse, and AC cord information.
Instructions for connecting the amplifier to AC power sources and voltage selection.
Diagram illustrating a standard stereo connection setup for the amplifier.
Guidelines for connecting audio input and output signals, including precautions.
Nomograph for determining the impact of speaker cable on damping factor.
Diagram illustrating a typical mono connection for the amplifier.
Instructions for operating the amplifier in mono mode and necessary connections.
Details the internal protection circuits for load mismatch, overload, and temperature.
Nomograph to select the correct fuse size for loudspeaker protection.
Schematic of a relay-based overload protection circuit.
Discusses methods for protecting loads, including fuses and active circuits.
Provides technical information for electrical operation but is not service-related.
Explains the functional blocks of the amplifier based on the block diagram.
Diagram showing the internal functional blocks and signal flow of the amplifier.
Describes power supply design and signal path through display and output jacks.