The AudioControl LC2i is an active, high-voltage OEM line converter. This compact, two-channel processor with active input circuitry, accepts speaker-level signals of up to 400-watts per channel from factory-installed source units or amplifiers. It then converts the speaker-level signals to high-quality pre-amp signals that can then be directed to after market processors and/or amplifiers. You no longer have to compromise when performing basic amplifier additions to factory installed audio systems. You can enjoy maximum sound quality while maintaining the use of your factory volume and steering wheel controls.