qtx LM41 - 4 Channel Mono Line & Instrument Mixer 

Compact mixer with high impedance jack inputs suitable for auxiliary line level or instruments, mixing to a master jack output. Separate volume controls for each input and master volume output. Powered by 1 x 9V battery or optional 12Vdc adaptor (see BSM1220)

• Stereo version also available LM82
• Supplied with PP3 9V battery
• Inputs 4 x 6.3mm Jacks
• Output 1 x 6.3mm Jack
• Dimensions: 150 x 108 x 64mm
• Input Impedance 20K ohms
• Output Impedance 600 ohms