Audio line receivers are not a specific brand but a category of electronic components used in professional audio and industrial communication systems. These devices are designed to receive and process audio signals over long distances with minimal interference. They are commonly produced by electronics manufacturers such as Texas Instruments (USA), Analog Devices (USA), and THAT Corporation (USA). These companies serve industries like broadcasting, live sound, telecommunications, and industrial automation. Key products include balanced audio receivers, differential line receivers, and signal conditioning ICs, which ensure high-fidelity audio transmission in demanding environments.