A speaker apparatus comprising: a speaker box in which a speaker (51, 52) is placed on a front surface of the speaker box; an electric circuit device placed in the speaker box to supply an externally provided sound signal to the speaker (51, 52); and a drip-proof wall (16, 71-74) placed in the speaker box, wherein the electric circuit device is placed behind the speaker (51, 52) in the speaker box; and the drip-proof wall (16, 71-74) is placed behind the speaker (51, 52) in the speaker box to provide space in which the electric circuit device is placed, wherein the drip-proof wall (16, 71-74) is a wall rising from an inner surface of the speaker box, the inner surface facing the speaker (51, 52), characterized in that the speaker apparatus comprises a bass reflex port (22, 23) formed integrally with the speaker box or installed on the speaker box such that one end of the bass reflex port (22, 23) is open outside the speaker box while the other end is open inside the speaker box; and in that the drip-proof wall (16, 71-74) has a pair of side walls (16a, 16b) each extending from an inner surface of the speaker box and a connecting wall which connects respective ends of the pair of side walls (16a, 16b) with each other to form space surrounded by the pair of side walls (16a, 16b) and the connecting wall to house the electric circuit device in the space, wherein the drip-proof wall (16, 71-74) is a wall having a side which is open at the front side of the speaker box to face the speaker (51, 52), and wherein the drip-proof wall is placed so that the space is isolated from the other end of the bass reflex port (22, 23), to isolate the electric circuit device from the other end of the bass reflex port (22, 23). a speaker box in which a speaker (51, 52) is placed on a front surface of the speaker box; an electric circuit device placed in the speaker box to supply an externally provided sound signal to the speaker (51, 52); and a drip-proof wall (16, 71-74) placed in the speaker box, wherein the electric circuit device is placed behind the speaker (51, 52) in the speaker box; and the drip-proof wall (16, 71-74) is placed behind the speaker (51, 52) in the speaker box to provide space in which the electric circuit device is placed, wherein the drip-proof wall (16, 71-74) is a wall rising from an inner surface of the speaker box, the inner surface facing the speaker (51, 52), characterized in that the speaker apparatus comprises a bass reflex port (22, 23) formed integrally with the speaker box or installed on the speaker box such that one end of the bass reflex port (22, 23) is open outside the speaker box while the other end is open inside the speaker box; and in that the drip-proof wall (16, 71-74) has a pair of side walls (16a, 16b) each extending from an inner surface of the speaker box and a connecting wall which connects respective ends of the pair of side walls (16a, 16b) with each other to form space surrounded by the pair of side walls (16a, 16b) and the connecting wall to house the electric circuit device in the space, wherein the drip-proof wall (16, 71-74) is a wall having a side which is open at the front side of the speaker box to face the speaker (51, 52), and wherein the drip-proof wall is placed so that the space is isolated from the other end of the bass reflex port (22, 23), to isolate the electric circuit device from the other end of the bass reflex port (22, 23).