Easily add an aftermarket amplifier to your vehicle’s factory audio system with the LocPRO Advanced 2-Channel or 4-Channel Active Line Output Converter with Auto Turn-On by PAC. The LPA-E.4 converts speaker-level (high-level) audio signals to RCA preamp (low-level) signals so you can install an aftermarket amplifier without replacing your factory radio. This two or four-channel active line output converter can also be used to retain your vehicle’s OEM amplified audio system when replacing your factory radio.

• Compatible with most vehicles’ OEM audio systems: For use when adding aftermarket amplifiers to car audio systems without RCA preamp outputs or when replacing your vehicle’s factory radio and retaining the factory amplified audio system.
• 2-channel or 4-channel input selection: Features 4-channel in and 4-channel out unfiltered or 2-channel in and 4-channel out unfiltered for integration with your existing audio system. Set to 2-channel if only using front left and front right inputs or 4-channel if using all inputs.
• Auto turn-on mode selection: Choose between remote wire input or DC offset (3V - 7V turn on trigger) to automatically power the amplifier when the radio is turned on.
• Dual variable stereo gain control with independent clipping indicator: Allows you to adjust the output signal from -28dB to +1dB and indicates signal clipping for both the front and rear when gain is set to high.
• Selectable on-board load resistors: Including 20 ohms, 60 ohms, and 20k ohms impedance for newer factory-amplified vehicles.
• 400W (40V) peak power input per channel @ 20k ohms: For high-quality sound.
• 9.5V (RMS) maximum output voltage @ 13.8V: For efficient operation.
• Selectable ground isolation: Choose from common, ISO (default), or 200 ohms.
• 10Hz - 20kHz frequency response: Ensures faithful sound reproduction.
• >110dBA signal-to-noise ratio @ 6.4V output: Enjoy crisp audio.
• <0.01% Total Harmonic Distortion (THD): For clean sound.
• Up to 12dB bass boost (CH 3-4): Customize your bass using the included LPA-REM remote bass level controller.
• <250Hz low-pass filter (CH 3-4): Ensures flexible operation.
• 18AWG removable quick-connect with screw-type terminal: Provides secure connections.
• Aluminum extrusion chassis and housing: Enables increased heat dispersion and durability.
• Remote mounting bracket: Allows for flexible installation options.
• Compatible with most vehicles’ OEM audio systems: For use when adding aftermarket amplifiers to car audio systems without RCA preamp outputs or when replacing your vehicle’s factory radio and retaining the factory amplified audio system.
• 2-channel or 4-channel input selection: Features 4-channel in and 4-channel out unfiltered or 2-channel in and 4-channel out unfiltered for integration with your existing audio system. Set to 2-channel if only using front left and front right inputs or 4-channel if using all inputs.
• Auto turn-on mode selection: Choose between remote wire input or DC offset (3V - 7V turn on trigger) to automatically power the amplifier when the radio is turned on.
• Dual variable stereo gain control with independent clipping indicator: Allows you to adjust the output signal from -28dB to +1dB and indicates signal clipping for both the front and rear when gain is set to high.
• Selectable on-board load resistors: Including 20 ohms, 60 ohms, and 20k ohms impedance for newer factory-amplified vehicles.
• 400W (40V) peak power input per channel @ 20k ohms: For high-quality sound.
• 9.5V (RMS) maximum output voltage @ 13.8V: For efficient operation.
• Selectable ground isolation: Choose from common, ISO (default), or 200 ohms.
• 10Hz - 20kHz frequency response: Ensures faithful sound reproduction.
• >110dBA signal-to-noise ratio @ 6.4V output: Enjoy crisp audio.
• <0.01% Total Harmonic Distortion (THD): For clean sound.
• Up to 12dB bass boost (CH 3-4): Customize your bass using the included LPA-REM remote bass level controller.
• <250Hz low-pass filter (CH 3-4): Ensures flexible operation.
• 18AWG removable quick-connect with screw-type terminal: Provides secure connections.
• Aluminum extrusion chassis and housing: Enables increased heat dispersion and durability.
• Remote mounting bracket: Allows for flexible installation options.