4×12 refers to a speaker cabinet configuration using four 12-inch speakers, traditionally associated with large guitar rigs and high-volume performance. This setup delivers a powerful, full-bodied sound with strong low-end punch, projection, and natural compression.

4×12 cabinets are most commonly used with high-powered amp heads in rock and metal settings, where volume, sustain, and impact are important. They produce a wide, immersive sound that fills a room, but are larger and heavier than smaller cabinet options, making them best suited to stage use rather than compact setups.