How to Hook Up a Mixer to an Amplifier

A stereo mixer adjusts the tone and volume balance of various audio devices, such as microphones, musical instruments and stereo components, for transmitting to an amplifier. The amplifier provides power to produce the sound on a set of speakers. A mixer connects to an amp with a standard set of stereo cables with color-coded plugs for quick connections. Take simple precautions, such as unplugging the equipment from the electricity, to prevent damage from a power surge when hooking up the audio cables.

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Connect a mixer to an amplifer with a standard set of stereo cables.

Step

Disconnect the amplifier and mixing board from electricity.

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Plug a set of RCA audio cables into the Master OUT jacks along the back edge of the mixing board, matching the white or black plug to the left audio output and the red plug to the right audio output.

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Push the plugs on the other end into a set of audio input jacks on the amplifier, matching the red plug to the right channel to prevent crossing the stereo signal.

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Reconnect the amp and mixer to an electrical outlet.