Line Driver for Car Audio A-line driver for car audio is a device that boosts the low-level audio signals from a head unit or amplifier to a higher voltage. This helps to reduce noise and distortion in the audio signal and provides a cleaner, more powerful sound. Line drivers are commonly used in car audio systems to improve sound quality and increase the system's overall volume. Visit - https://www.recoilaudio.com/product-category/signal-accessories/line-driver-line-output-controllers/