Check the listing for details. AudioControl LC1i Line Output Converter. Condition: New. Listed at 89.00 USD. Product highlightsactive 2-channel line driver/output converter designed to work with aftermarket and factory systems provides up to 9.5 Vrms output preamp and speaker-level inputs speaker-level inputs handle up to 40V (400 watts RMS) auto turn-on via DC offset or audio detect level control and Maximized LED indicator load selection switch for OEM integration (20, 60, or 20,000 ohms) 12-volt turn-on lead output speaker-level inputs feature switchable load resistance to prevent factory stereo shut-down wiring, fuse, and hardware not included with device 18-gauge power and ground leads and a 1-amp fuse recommended warranty: 5 years What's in the boxTwo-channel line-output converter Two 4-pin captive-screw connectors (installed) Instructions/Specs/Warranty on packaging About this itemWritten by Crutchfield's Buck PomerantzProvide input signal for your amp Aftermarket amplifiers and DSP sound processors need clean and strong input signals, whether they come from a receiver's RCA outputs or a factory amp's speaker outputs. AudioControl's LC1i line output converter can produce up to 9.5 volts of preamp-level output in either case, acting as a line driver using its RCA inputs or as a line output converter using the speaker-level inputs. Works with factory amps Those speaker-level inputs can handle up to 40 volts, the equivalent of 400 watts, so you can use one in a premium system with a factory amplifier, enabling you to retain all your vehicle's factory audio options and warnings. The LC1i's level control with a Maximized LED indicator help you to keep the signal strong, as well as under control and distortion-free.