We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
Pac SNI-50A 2-Channel Adjustable High-Power Line Out Converter
- Adjustable 2-Channel Line Out Converter
- 50 watts maximum input per channel
- Detachable wiring harness
- Linear 20 to 20,000Hz output based on input signal
- Transformer isolated for optimal sound and performance
- Maintains correct phasing
Line out converter for factory radios with 2 to 50-watts per channel. Accepts speaker level input and provides stereo RCA output signal for adding an aftermarket amplified audio system.
Pac SNI-50A 2-Channel Adjustable High-Power Line Out ConverterFeatures:
- 50 watts maximum input per channel
- Linear 20 to 20,000Hz output based on input signal
- Transformer isolated for optimal sound and performance
- Maintains correct phasing
- Works with most factory installed radios
- Detachable wiring harness
- Integrated wire tie mounts
| Manufacturer | PAC |
|---|---|
| Part Number | SNI-50A |
| Number of Channels | 2 Channel |
| Remote turn on circuit | No |
| Warranty | 1 Year |
| UPC Code | 606523108539 |
| Return period | 30 days |
| Exchange period | 30 days |
What is a Line Output Converter (LOC)?
A Line Output Converter (LOC) is an essential car audio device that converts high-level speaker outputs from a factory radio or amplifier into low-level RCA signals that aftermarket amplifiers can use.
Why Do You Need a Line Output Converter?
Most factory head units do not have dedicated RCA preamp outputs. A LOC bridges the gap by stepping down high-voltage speaker signals (typically 2–20 volts) into clean low-level signals (0.5V–5V) suitable for amplifiers.
Types of Line Output Converters
| Type | Power Source | Advantages | Disadvantages | Best For |
|---|---|---|---|---|
| Passive LOC | No power needed | Simple, inexpensive, reliable | Lower output, potential bass loss | Basic systems |
| Active LOC | Requires +12V power | Higher output, cleaner signal, adjustable gain | More expensive | High-performance systems |
Key Features
- High-level speaker wire inputs
- Low-level RCA outputs (2 or 4 channels)
- Gain control for output level adjustment
- Ground isolation to reduce noise
- Remote turn-on output with signal sense
- Vehicle-specific T-harnesses (plug & play)
Common Applications
- Adding aftermarket subwoofers and amplifiers
- Upgrading factory speakers with external amplification
- Integrating DSP processors
- Creating hybrid factory + aftermarket audio systems
Pro Tip: For vehicles with multiple amplifiers, an SPDT relay is often recommended for proper remote turn-on functionality.











