Best Line Output Converter 2 Channel for Car Audio Upgrades
If you’re adding an amplifier to a factory radio, a 2-channel line-out converter (LOC) is essential for converting speaker-level signals to RCA line-level signals. This guide highlights five top options that balance compatibility, ease of installation, and sound quality for common car audio setups. Great for upgrading front speakers, adding subwoofers, or boosting overall clarity, these picks suit different vehicle systems and user needs.
| Product | Best For | Key Benefit |
|---|---|---|
| KICKER 46KISLOC2 | Sound purists who want accurate highs and deep lows | Remotes wiring with DC offset for reliable output |
| CT Sounds CT-LC2 | Bass-focused setups | BassLift technology restores factory bass response |
| Scosche LOC80 | Flexible, versatile installs | Broad compatibility with many systems |
| NuIth Car Audio LOC | Budget-friendly upgrades | Simple 2-channel conversion for adding amps |
| DS18 V2HL.V2 | OEM-friendly installations | Supports factory head-unit features while adding amp output |
KICKER 46KISLOC2 K-Series Stereo Line-Output Converter
The KISLOC2 converts a speaker signal to both an RCA line signal and a remote 12-volt wire with DC offset. It accepts up to 55 watts (16 volts) of input, making it suitable for mid-range factory radios paired with a modest amplifier. Best for audiophiles who want precise sonic reproduction across volume levels and a straightforward installation using existing speaker wires.
Who it’s best for: Enthusiasts seeking accurate highs and solid bass without complex rewiring. Limitation: May require careful gain matching to avoid distortion at high levels.
CT Sounds CT-LC2 2-Channel Premium Line-Out Converter
The CT-LC2 features BassLift technology and offers both a Full-Range Main Output and a Low-Pass Bass Output. This design targets better bass response by compensating for factory bass roll-off. It is ideal for users who want a strong subwoofer presence without major wiring changes.
Who it’s best for: Bass-forward builds and subwoofer enthusiasts. Limitation: BassLift improvements may depend on other system components for optimum results.
Scosche LOC80 Line Output Converter
LOC80 is designed for wide compatibility, with flexible installation options to convert high-level speaker signals to RCA line levels. It’s a solid choice when adding an aftermarket amp or integrating a factory system with minimal signal loss, delivering clearer sound for subwoofers and front-stage amps.
Who it’s best for: Builders needing versatile, easy installation across different vehicle audio setups. Limitation: Some installations may benefit from additional wire management for optimal results.
Scosche LOC2SL Line Output Converter with Remote Control Knob
The LOC2SL adds a remote control knob for easy on-the-fly level adjustments. It shares Scosche’s versatility and is well-suited for drivers who want precise, on-demand control of output to an aftermarket amplifier without reconfiguring the head unit. Best for: Those who want quick, hands-on control. Limitation: The remote knob may require mounting access for convenient reach.
AccuBASS 2-Ch Line Out Converter Kit – LC2iPro
The LC2iPro is a straightforward 2-channel LOC that fits basic upgrades, such as upgrading front speakers or adding a subwoofer. Two input and two output channels make it a simple choice when factory integration is preferred, and you want to maintain factory head-unit features while adding amplification.
Who it’s best for: Budget-conscious buyers seeking reliable 2-channel conversion. Limitation: May lack some advanced features found in premium models.
NuIth Car Audio 2-Channel LOC
The NuIth LOC converts car speaker wire output to RCA outputs, enabling a 2-channel or mono amplifier use. It includes gain adjustment to tailor bass levels, making it practical for drivers who want a simple upgrade path without removing the factory radio.
Who it’s best for: Value-focused buyers seeking simple, adjustable LOC performance. Limitation: Might require careful placement to avoid interference in tight dash spaces.
DS18 V2HL.V2 Hi/Lo Converter
The DS18 V2HL.V2 is designed for OEM-friendly installations, providing high-to-low conversion with a speaker emulator mode. It preserves climate control and other vehicle signals while offering a clean output to aftermarket amps, making it suitable for factory-embedded systems that need amplification without losing original UI features.
Who it’s best for: Car owners upgrading OEM systems while keeping factory controls intact. Limitation: May be overkill for very basic amp additions.
Buying Guide: Key Considerations For 2-Channel LOCs
- Compatibility: Check input wattage and vehicle audio system compatibility to ensure the LOC can handle your factory output and the amplifier you plan to use.
- Output Type: Decide between full-range RCA outputs only or dual outputs (main and sub) for better bass management.
- Remote Gain/Control: Some models include remote turn-on or gain knobs; consider whether you want on-dash control for bass and volume tuning.
- Ease of Installation: Look for LOCs with simple wiring diagrams and clear mounting options to minimize dash work.
- Factory Integration: If you want to preserve features like climate control or steering-wheel controls, choose LOCs designed for OEM compatibility.
- Sound Quality: Focus on models with low noise, minimal signal loss, and appropriate headroom for your amp and speakers.
Frequently Asked Questions
- What is a line-out converter used for?
It converts speaker-level signals to RCA line-level signals so you can add an amplifier or subwoofer to a factory or aftermarket head unit. - Do I need a 2-channel LOC for a subwoofer?
Yes, a 2-channel LOC can send a dedicated line-level signal to a subwoofer amplifier when paired with the right crossover settings. - Will a LOC affect factory features like climate control?
Some LOCs are designed to preserve OEM features; check compatibility notes to ensure no interference with factory signals. - Can I install a LOC myself?
For many vehicles, a DIY installation is feasible with basic tools and wiring knowledge, but professional help is recommended for complex dashboards.