10 Best Line Out Converter of December 2025

• ADD SUBWOOFERS: Works with high power car stereo speakers, up to 80 watts per channel, to add subwoofer system to any car speaker system
• EASY TO INSTALL: Provides amplifier remote to turn on output without removing car audio system
• OUTPUT CONVERSION: Converts car stereo speaker wires output to RCA Cable outputs
• ADDITIONAL CHANNEL: Allows the addition of 2-channel or mono amplifiers to factory or aftermarket car stereo kit
• CONTROLLER: Includes mountable remote control with knob for adjusting car subwoofer bass audio level from the dash; Comes with limited lifetime warranty

Scosche

• PRO Series 2-Channel High Power Line Output Converter
• Designed to optimize audio levels between radio and amplifier to achieve the best audio quality
• Ideal for use when adding an amplifier to an OEM system
• Configurable for speaker level or RCA level input/output
• Single dial, precision matched stereo, level gain adjustment

PAC

• HIGH PERFORMANCE - DS18 VH5L 5-Channel Hi/Lo Converter integrates your 5 channel OEM head unit with front, rear, and sub channels directly to your aftermarket sound quality audio system. Easily mountable. (Screws Included)
• BUILT-IN LED CLIPPING INDICATORS - Allows for easy gain adjustment that maximizes your head unit signal for high-quality audio reproduction.
• HIGH LEVEL INPUT RATING - 50 Watts. RCA Low Level Output: 4V. Signal to Noise Ratio: >95dB. Frequency Response: 10Hz-30KHz. / Lowest Impedance and Best Power Filter / FR4 Double Sides PCB
• OUTPUT CONVERSION - Converts car stereo speaker wire outputs to RCA Cable outputs. Metal case creates a shield from ground noises and electromagnetic signals
• REMOTE TRIGGER - Audio signal detection and delayed time control to avoid amplifier malfunction or POP noises. Remote Trigger Output: 12V

DS18

• ADD SUBWOOFERS: Works with high power car stereos (up to 80 watts per channel) to add subwoofer bass systems to any car stereo.
• EASY TO INSTALL: Provides amplifier remote turn on output without removing car stereo.
• OUTPUT CONVERSION: Converts car audio speaker wire outputs to RCA Cable outputs.
• ADDITIONAL CHANNEL: Allows the addition of 2-channel or mono amplifiers to factory or aftermarket stereos.
• BUY WITH CONFIDENCE: Backed by Scosche’s Lifetime Tech Support and Limited Lifetime Warranty.

Scosche

• Rockford Fosgate RF-HLC high level speaker signal to low level RCA Adapter
• Speaker Level to RCA
• High to Low Adapter
• Package weight: 1.0 lbs

Rockford

• Add an amplifier to nearly any radio with the KISLOC2 Stereo Line-Out Converter. Experience true sonic accuracy at any volume level, with all the sparkling highs and thunderous lows of your original audio.
• Using nothing more than your factory speaker wires, the innovative KISLOC2 automatically converts the speaker signal into both an RCA signal and a powerful 100 milli-amp, 12-volt remote wire using DC offset.
• Accepts up to 55 watts (16 volts) of input signal

KICKER

• Two channels of Active speaker level inputs - Accept 400 watt signals per channel
• Fixed and variable outputs with discrete level controls
• AccuBASS processing for correction of bass roll-off
• Input For Optional Remote Level Control
• Compact design

AudioControl

• K-Series Interconnect Cable
• World's first micro surface mount line-out converter
• Two channel Speaker to RCA
• K-Grip dual-mold connectors offer sure grip
• Split pin RCA with silver tinned OFC wire

Kicker

• Adjustable Line Output Converter
• Use the SNI-35 when adding an amplifier to a factory radio to convert the radio's speaker level output to the lower amplifier (RCA) level input
• Utilize Audio Transformer for Noise Isolation
• Phase Adjusted
• .5 dB Linearity from 20 - 20,000 Hz

PAC

• Speaker Level Input Accepts Up To 400 Watts RMS
• Bass Enhancer And Bass Compensation with xBOOST Technology
• Selectable Auto On optimizes efficiency by only utilizing XLCA2 when the vehicle is in use
• 9.5 Volt Pre-Out and 12 Volt Trigger Out and Level Matching Controls
• Dual Amplifier Outputs and Level Matching Controls

NVX