The PAC LP7-4 is a professional-grade 4-channel line output converter designed for car audio systems. Manufactured by PAC, a trusted brand in the industry, this device is perfect for converting and amplifying audio signals from a car's audio source to ensure high-quality sound output. Ideal for audiophiles and car enthusiasts looking to enhance their vehicle's sound system, the PRO SERIES 4-CHANNEL LINE OUTPUT CONVERTER PACLP7-4 is a reliable choice for achieving premium audio performance. Please verify that the part number and pictures match the part you are replacing before ordering.