PAC LP7-4 4-Channel Line Output Converter with Remote

The PAC LP7-4 L.O.C. PRO is a high-power 4-channel line output converter that converts speaker-level signals to clean RCA outputs while offering precision gain control and remote turn-on for adding an amplifier to an OEM radio.

When upgrading a factory car audio system, matching signal levels between the head unit and aftermarket amplifier is critical to preserving clarity and avoiding noise or distortion. The PAC LP7-4 is engineered to bridge that gap: it accepts speaker- or RCA-level inputs, provides a flat 20–20kHz frequency response, and delivers conservatively rated power handling with four channel outputs. Built with user-friendly stereo gain controls and a universal harness, it simplifies installation and tuning for both professional installers and DIY enthusiasts.

How does the LP7-4 improve sound when adding an amplifier?

The LP7-4 converts high-voltage speaker outputs from a factory radio into low-level RCA signals that an aftermarket amplifier expects, preventing clipping and reducing background noise. Its matched stereo gain controls let you set consistent levels across channels for accurate tonal balance.

• Converts speaker-level to RCA-level signals for clean amplification
• Precision single-dial stereo gain adjustment per channel pair
• Full 20–20kHz ±1.5dB frequency response for accurate audio reproduction

Will it work with my factory-installed head unit?

Yes — the LP7-4 is designed for universal compatibility with OEM systems. It accepts either speaker-level or RCA-level inputs, and the included universal harness and remote turn-on lead integrate with most factory wiring without cutting stock connectors.

• Configurable input for speaker or RCA sources
• Remote turn-on output triggers aftermarket amplifiers
• Universal wiring harness fits a wide range of factory radios

How do you set levels and avoid distortion or noise?

Use the unit’s single-dial, matched stereo gain controls to align output with your amplifier’s input sensitivity. Start low, increase until the amplifier reaches proper gain without audible distortion, and use the device’s balanced response to maintain clarity across the audible range.

• Start with conservative gain, then fine-tune by ear or with a meter
• Matched stereo control ensures left/right channel consistency
• High-power design reduces strain when driving aftermarket amplifiers

What installation features help speed the setup?

The LP7-4 includes a straightforward harness and clearly labeled connections, plus a remote turn-on lead to automatically power your amplifier. Its compact form factor fits behind dash panels or in amplifier cavities without complex mounting requirements.

• Compact housing for flexible mounting locations
• Clearly labeled inputs/outputs and remote turn-on conductor
• Works with both aftermarket RCAs and factory speaker outputs

Who is this for: The PAC LP7-4 L.O.C. PRO is aimed at car audio enthusiasts and professional installers who need a reliable, high-power interface to add an amplifier to a factory-installed system. It’s ideal for anyone wanting a noise-free, full-frequency transfer from head unit to amplifier, plus straightforward level control and clean integration with existing wiring.