A speaker device, comprising: a speaker unit; a speaker cabinet to which the speaker unit is mounted, the speaker cabinet comprising: a first outer plate; and a partition plate arranged between the first outer plate and the speaker unit so as to be opposed to the first outer plate, wherein the first outer plate and the partition plate form a bass reflex port communicating with a rear space of the speaker unit, wherein the first outer plate forms a bottom plate of the speaker cabinet, wherein the speaker device further comprises a top plate, which is arranged so as to be opposed to the partition plate and sandwich the speaker unit together with the partition plate, characterized in that the partition plate includes a leading end surface inclined so as to gradually increase a distance from the first outer plate as extending forward, the top plate protrudes forward with respect to the first outer plate, a front end surface of the top plate is inclined downward from a rear side to a front side of the top plate, the first outer plate includes a leading end surface inclined so as to gradually increase a distance from the partition plate as extending forward, and the leading end surface of the first outer plate and the front end surface of the top plate are arranged to be flush with each other when two speaker devices are stacked. a speaker unit; a speaker cabinet to which the speaker unit is mounted, the speaker cabinet comprising: a first outer plate; and a partition plate arranged between the first outer plate and the speaker unit so as to be opposed to the first outer plate, wherein the first outer plate and the partition plate form a bass reflex port communicating with a rear space of the speaker unit, wherein the first outer plate forms a bottom plate of the speaker cabinet, wherein the speaker device further comprises a top plate, which is arranged so as to be opposed to the partition plate and sandwich the speaker unit together with the partition plate, characterized in that the partition plate includes a leading end surface inclined so as to gradually increase a distance from the first outer plate as extending forward, the top plate protrudes forward with respect to the first outer plate, a front end surface of the top plate is inclined downward from a rear side to a front side of the top plate, the first outer plate includes a leading end surface inclined so as to gradually increase a distance from the partition plate as extending forward, and the leading end surface of the first outer plate and the front end surface of the top plate are arranged to be flush with each other when two speaker devices are stacked. a first outer plate; and a partition plate arranged between the first outer plate and the speaker unit so as to be opposed to the first outer plate, wherein the first outer plate and the partition plate form a bass reflex port communicating with a rear space of the speaker unit, wherein the first outer plate forms a bottom plate of the speaker cabinet, wherein the speaker device further comprises a top plate, which is arranged so as to be opposed to the partition plate and sandwich the speaker unit together with the partition plate, characterized in that the partition plate includes a leading end surface inclined so as to gradually increase a distance from the first outer plate as extending forward, the top plate protrudes forward with respect to the first outer plate, a front end surface of the top plate is inclined downward from a rear side to a front side of the top plate, the first outer plate includes a leading end surface inclined so as to gradually increase a distance from the partition plate as extending forward, and the leading end surface of the first outer plate and the front end surface of the top plate are arranged to be flush with each other when two speaker devices are stacked.