NEC® Article ___ covers audio signal processing, amplification, and reproduction equipment.

NEC® Article ___ covers audio signal processing, amplification, and reproduction equipment.

• A. 680
• B. 640
• C. 702
• D. 705

Answer: (B)

The NEC organizes installation rules by equipment type, so there is a specific article devoted to audio signal processing, amplification, and reproduction equipment. That article lays out how to power, wire, protect, and safely install gear like mixers, signal processors, amplifiers, loudspeakers, and related cabling and rack equipment. It covers things such as appropriate wiring methods, overcurrent protection, grounding and bonding considerations, and mounting or enclosure requirements for audio systems. This makes it the best match because it directly addresses the installation and safety considerations for sound systems and their components—the exact topic described in the question. The other articles govern very different systems (for example, pools and water features, or interconnection of energy sources) and don’t pertain to audio equipment installation.

The NEC organizes installation rules by equipment type, so there is a specific article devoted to audio signal processing, amplification, and reproduction equipment. That article lays out how to power, wire, protect, and safely install gear like mixers, signal processors, amplifiers, loudspeakers, and related cabling and rack equipment. It covers things such as appropriate wiring methods, overcurrent protection, grounding and bonding considerations, and mounting or enclosure requirements for audio systems.

This makes it the best match because it directly addresses the installation and safety considerations for sound systems and their components—the exact topic described in the question. The other articles govern very different systems (for example, pools and water features, or interconnection of energy sources) and don’t pertain to audio equipment installation.