When it comes to adding an amplifier or amplifiers to the factory audio system in a modern vehicle, the link4+ does what models from competing brands just can’t.  It is compatible with Start-Stop systems, meaning you won’t lose sound at a red light. It also has our best in class adaptive loading, so it works with virtually any OEM system.

The link4+ is very flexibly. It can directly accept 4-channels of input and give you 4-channels of output.  It can accept 2-channels of input and give you 4-channels of output.  If you input 4-channels, you can sum them down to 2-channels of output and pass through another 2-channels for retained sub level control.  It even has a 3.5mm Auxiliary Input so you can add your phone or other portable device to the system.  No other 4-channel LOC can do all of that. 

As an added bonus, it includes our Multi-Function Remote Level/Source Control that can adjust your subwoofer output level, the volume of the auxiliary source or serve as a Master Volume Control for your entire system.  This is especially useful in OEM systems where speed sensitive volume dependent equalization is present.

link4+ Features

• 4-Channel Line Output Converter

• 4-Channel Matrix Summing Processor (4-in/4-Out)

• Multi-Function Remote Level/Source Control

  • Master Volume Control

  • AUX Volume Control

  • Independent CH3/4 Level

  • Source/Function Select

• AUX 3.5mm Input

• 2ch or 4ch Input Select (Direct, Copy or Sum)

• Start-Stop Vehicle Compatible

• Matrix Summing with +/-6dB Level Trim

• Adaptive OEM Load Technology

• Differential Balanced Inputs

• Low Impedance Outputs

• Variable Gain Adjustments w/Clip LEDs

• Auto Turn-On via DC-Offset or Audio Signal Detect

• Generated +12V Remote Output

• Locking Detachable Power/Speaker Input Terminals

• Professional Grade Panel Mount RCA’s

• Compact Aluminum Chassis w/Detachable Mounting tabs

link4+ Specifications

• Output Voltage (Max) ------------ >10Vrms

• Output Impedance ----------------- <50Ω

• Input Sensitivity

  • SPK ----------------------------- 2-20Vrms, 4-40Vrms

  • AUX ----------------------------- 0.5-5Vrms

• Max Input Voltage (SPK) --------- 40Vrms

• Frequency Response -------------- <10Hz to >100kHz

• THD+N (SPK/AUX) ------------------ <0.05% /<0.05%

• S/N (SPK/AUX) ----------------------- >114dBA />115dBA

• Turn-On Trigger -------------------- +12V, DC-offset & Audio Detect

• Generated +12V Output --------- >500mA

• Chassis Dimensions ---------------- 1.1”x3.5”x5.2” (29x90x133mm)