Low Noise Line Mixer. 4 Channels. Individual Level Controls. Compact Design. Ultra low Noise. Powered Via 12 Volt Power Supply (supplied)Specification Line Input Connectors: 1/4” TS Input Impedance: 4.7k Ohms Maximum Input Level: +16dBu Output Connector: 1/4” TS Output Impedance: Approx. 80 Ohms Maximum Output Level: +16dBu Power Supply: 12v DC 500mA Dimensions: 47mm x 58 x 104mm Weight: 0.37kg. Professional 4 channel line level mixer designed to mix down 4 mono line level signals. Ideal for use where you may be running low on mixer channels- this will enable you to add a few more channels in. The four inputs and one output are via 1/4″ mono jack plugs and each input has its own level control. Excellent signal head-room and suitable for mixing in keyboards electronic drums and auxiliary equipment. . Buy 4 Channel Line Level Mixer from Terralec ltd. audio mixer