NVX XLOC44X 4-Channel 4 inputs / 4 outputs Active Line Output Converter

NVX XLOC24X 2 inputs / 4 outputs Line Output Converter with Remote Level Control

NVX XLOC22X 2 inputs / 2 outputs Line Output Converter with Remote Level Control

NVX XLOC66X 6 inputs / 6 outputs Line Output Converter with Remote Level Control

AudioControl LC2i 2 Channel Line Output Converter (NO PLUGS) | TESTED

Recoil PLO2 2-Channel Line Output Converter with Remote Bass Knob and Voltmeter

AudioControl LC1i Active 2-Channel Line Driver/Output Converter

Taramps Pro 2.4S DSP Signal Processor for Car Audio, Multiple Inputs/Outputs