Factory Integration SC4.1 Signal Converter Overview The SC4 is an OEM (Original Equipment Manufacturer) interface that allows audio technicians to add aftermarket amplification to a factory-installed source unit. Features Input Summing Differential-Balanced Inputs Independent Variable Gains Selectable Ground Isolation Signal Sense Turn on (RCA and High Level) Double Power Supply Detachable Power and Speaker Input Terminals, FR4 PCB Aluminum Chassis OEM Load Detect Compatible Specification Channels 4 Input Voltage Sensitivity 2 - 18V Input Channels 4 x Speaker-Level Output Channels 4 x Low-Level RCA Output Voltage 10V Dimensions: in 3.8 x 4 x 0.98 Dimensions: mm 98 x 104 x 25 Shipping Weight – lbs 1