Audio DACs (Digital-to-Analog Converters) are not a single brand but a category of electronic devices used to convert digital audio signals into analog signals for high-fidelity sound reproduction. Prominent brands in this industry include ESS Technology (USA), AKM (Asahi Kasei Microdevices, Japan), and Texas Instruments (USA). These companies specialize in manufacturing high-performance DAC chips and modules, serving industries such as consumer electronics, professional audio equipment, and automotive audio systems. Key products include standalone DAC units, integrated circuits (ICs), and audio processing solutions for devices like headphones, speakers, and home theater systems.