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The AudioControl LC2i PRO is a 2‑channel active line output converter designed to bridge factory speaker-level outputs to aftermarket amplifiers. It’s especially useful when you want to retain your OEM head unit while adding amps or subwoofers. Thanks to AudioControl’s patented AccuBASS® technology, it compensates for the common bass roll-off in many factory systems, restoring low-frequency performance as you crank up the volume. A wired ACR-1 remote control is included, allowing sub level adjustments right from the driver’s seat.

Key Benefits

• AccuBASS® Bass Compensation: Corrects for the bass roll-off typical of factory head units, so your sub / amp gets a stronger, more consistent low-end. 
• Flexible Trigger Options: Choose between GTO™ signal sense (detects DC offset), audio sense, or traditional +12 V remote. 
• High Input Handling: Speaker-level inputs can handle up to 40 Vrms (about 400 W) so it works well even with powerful factory systems. 
• Load-Selection Switch: Lets you match the input impedance to different types of factory systems, improving integration. 
• Fixed + Variable Preamp Outputs: Provides both fixed-level and variable-level outputs, allowing level matching and volume control. 
• Discrete Level Controls: Separate gain controls for main output and bass output for fine tuning. 
• Ground Isolation Options: Switchable ground isolation helps prevent ground loops and noise. 
• Compact Chassis: Small footprint for easy mounting in tight spaces. 
• Remote Bass Control: The included ACR‑1 knob lets you adjust bass level from the dash. 

Technical Specifications

• Speaker-Level Input: 1 (2 channels) 
• Maximum Input: 40 Vrms / 400 W (in 20 kΩ load‑select setting) 
• Input Impedance (selectable): 20Ω, 60Ω, 20kΩ 
• Outputs:
• Preamp Outputs: 2 main + 2 bass 
• Max Output Level: 9.5 Vrms (13V peak) 
• Gain Range: ±12 dB 
• Output Impedance: 150Ω 
• Performance:
• Total Harmonic Distortion (THD): 0.01% 
• Signal-to-Noise Ratio: >110 dB 
• Frequency Response: 20 Hz – 50 kHz ±1 dB 
• Control / Trigger:
• Trigger Modes: GTO Signal Sense, Audio Sense, Remote In 
• 12V Remote Output: Always active when unit is on 
• Power / General:
• Current Draw: 200 mA 
• Recommended Fuse: 1 A 
• Dimensions & Weight:
• Size: 6.9″ L × 3″ D × 1″ H (including connectors) 
• Weight: 0.75 lb (0.34 kg) 

Installation & Compatibility Tips

Choose the correct load‑select setting (20Ω / 60Ω / 20kΩ) to match your factory system and avoid distortion. 

Use the ACR-1 knob to dial in the sub level after tuning AccuBASS and gain.

For noise-free installs, use the ground isolation switch if you suspect ground loop issues.

Since the LC2i PRO handles up to 40V on its speaker-level inputs, it’s suitable even for high-powered OEM amplifiers.

FAQS

• What does the AudioControl LC2i do in a factory audio setup?
  It converts high-level factory speaker signals into clean RCA outputs, making it easy to add aftermarket amps and subs.
• How does AccuBASS help improve sound quality?
  AccuBASS restores low frequencies often removed by factory radios, ensuring full, powerful bass in upgraded systems.
• Does the LC2i require a remote turn-on line?
  No—its GTO (Great Turn-On) feature automatically powers the unit when it detects signal from the factory system.
• Is the LC2i compatible with any vehicle?
  Yes, it works with virtually any modern factory audio system, including vehicles with bass roll-off.