A reproduction device for reproducing music, the reproduction device configured to output a reproduction signal to a speaker unit system comprising a first speaker unit group to be disposed in front of a listener and a second speaker unit group to be disposed behind the listener, the reproduction device comprising: a first delay circuit configured to delay a reproduction signal and output the so obtained first delayed reproduction signal to the first speaker unit group ; and a second delay circuit configured to delay the reproduction signal and output the so obtained second delayed reproduction signal to the second speaker unit group , wherein the first speaker unit group is configured to output the first delayed reproduction signal and the second speaker unit group is configured to output the second delayed reproduction signal, wherein the first speaker unit group includes at least a first left speaker unit and a first right speaker unit , the second speaker unit group includes at least a second left speaker unit and a second right speaker unit , wherein the reproduction device is configured to set, for the first delay circuit, in the first speaker unit group , a first delay time in accordance with a first distance difference between a distance from a reference position to a speaker unit of the first speaker unit group furthest from the reference position and a distance from the reference position to another speaker unit of the first speaker unit group, and wherein the reproduction device is configured to set, for the second delay circuit, in the second speaker unit group , a second delay time in accordance with a second distance difference between a distance from the reference position to a speaker unit of the second speaker unit group furthest from the reference position and a distance from the reference position to another speaker unit of the second speaker unit group and in accordance with a first longitudinal distance from a speaker unit included in the first speaker unit group to a speaker unit included in the second speaker group. a first delay circuit configured to delay a reproduction signal and output the so obtained first delayed reproduction signal to the first speaker unit group ; and a second delay circuit configured to delay the reproduction signal and output the so obtained second delayed reproduction signal to the second speaker unit group , wherein the first speaker unit group is configured to output the first delayed reproduction signal and the second speaker unit group is configured to output the second delayed reproduction signal, wherein the first speaker unit group includes at least a first left speaker unit and a first right speaker unit , the second speaker unit group includes at least a second left speaker unit and a second right speaker unit , wherein the reproduction device is configured to set, for the first delay circuit, in the first speaker unit group , a first delay time in accordance with a first distance difference between a distance from a reference position to a speaker unit of the first speaker unit group furthest from the reference position and a distance from the reference position to another speaker unit of the first speaker unit group, and wherein the reproduction device is configured to set, for the second delay circuit, in the second speaker unit group , a second delay time in accordance with a second distance difference between a distance from the reference position to a speaker unit of the second speaker unit group furthest from the reference position and a distance from the reference position to another speaker unit of the second speaker unit group and in accordance with a first longitudinal distance from a speaker unit included in the first speaker unit group to a speaker unit included in the second speaker group. <EOS>