A speaker device with enhancement of bass, the speaker device being installed inside a casing of an electronic device and comprising: a first cabinet disposed in the casing, a first chamber being formed in the first cabinet; a speaker unit disposed in the first chamber and for emitting a sound; a second cabinet connected to the casing and having an opening formed on the casing, a second chamber being formed in the second cabinet and communicating with the opening; characterized in that the speaker device further comprises: a resonant cabinet combined with the first cabinet and for holding the speaker unit, the resonant cabinet and the first cabinet cooperatively defining the first chamber, a resonant chamber being formed in the resonant cabinet for resonating the sound emitted from the speaker unit; and a tube cabinet connecting the first cabinet and the second cabinet, a tube chamber being formed in the tube cabinet and communicating the first chamber and the second chamber, the tube cabinet having an inlet and an outlet, the inlet and the outlet being respectively disposed on two opposite ends of the tube cabinet, the first chamber being communicated with the tube chamber via the inlet, the tube chamber being communicated with the second chamber via the outlet, an area of the inlet being substantially equal to an area of the outlet, the second cabinet having a sound stopper, the sound stopper protruding from a side of the second cabinet and defining the opening, so that an area of the opening is between 1.5 times of an area of the outlet and 100 times of an area of the outlet, wherein bass of the sound emitted from the speaker unit is enhanced after the sound passes through the first chamber, the tube chamber and the second chamber, and the enhanced sound is emitted out via the opening. a first cabinet disposed in the casing, a first chamber being formed in the first cabinet; a speaker unit disposed in the first chamber and for emitting a sound; a second cabinet connected to the casing and having an opening formed on the casing, a second chamber being formed in the second cabinet and communicating with the opening; characterized in that the speaker device further comprises: a resonant cabinet combined with the first cabinet and for holding the speaker unit, the resonant cabinet and the first cabinet cooperatively defining the first chamber, a resonant chamber being formed in the resonant cabinet for resonating the sound emitted from the speaker unit; and a tube cabinet connecting the first cabinet and the second cabinet, a tube chamber being formed in the tube cabinet and communicating the first chamber and the second chamber, the tube cabinet having an inlet and an outlet, the inlet and the outlet being respectively disposed on two opposite ends of the tube cabinet, the first chamber being communicated with the tube chamber via the inlet, the tube chamber being communicated with the second chamber via the outlet, an area of the inlet being substantially equal to an area of the outlet, the second cabinet having a sound stopper, the sound stopper protruding from a side of the second cabinet and defining the opening, so that an area of the opening is between 1.5 times of an area of the outlet and 100 times of an area of the outlet, wherein bass of the sound emitted from the speaker unit is enhanced after the sound passes through the first chamber, the tube chamber and the second chamber, and the enhanced sound is emitted out via the opening. a resonant cabinet combined with the first cabinet and for holding the speaker unit, the resonant cabinet and the first cabinet cooperatively defining the first chamber, a resonant chamber being formed in the resonant cabinet for resonating the sound emitted from the speaker unit; and a tube cabinet connecting the first cabinet and the second cabinet, a tube chamber being formed in the tube cabinet and communicating the first chamber and the second chamber, the tube cabinet having an inlet and an outlet, the inlet and the outlet being respectively disposed on two opposite ends of the tube cabinet, the first chamber being communicated with the tube chamber via the inlet, the tube chamber being communicated with the second chamber via the outlet, an area of the inlet being substantially equal to an area of the outlet, the second cabinet having a sound stopper, the sound stopper protruding from a side of the second cabinet and defining the opening, so that an area of the opening is between 1.5 times of an area of the outlet and 100 times of an area of the outlet, wherein bass of the sound emitted from the speaker unit is enhanced after the sound passes through the first chamber, the tube chamber and the second chamber, and the enhanced sound is emitted out via the opening.