Monaural or monophonic sound reproduction (often shortened to mono) is intended to be heard as if it were a single channel of sound perceived as coming from one position (unlike stereo, which uses two channels to convey the impression of sound coming from different places from left, middle, and right). In mono, only one loudspeaker is necessary, but, when played through multiple loudspeakers or headphones, identical signals are fed through each of the wires into each speaker, resulting in the perception of a one-channel sound, which "images" in one sonic space between the speakers (provided that the speakers are set up in a proper symmetrical critical-listening placement). Monaural recordings, like stereo, customarily use multiple microphones, fed into multiple channels on a recording cons