Patent ID: 6587571
Filing Date: 2003-07-01
Classification: H04R

Abstract:
A speaker in which a voice coil bobbin is attached to an inner circumferential portion of a cone shaped diaphragm, a voice coil is wound around the voice coil bobbin, and the voice coil is inserted into a magnetic gap, characterized in thatthe voice coil bobbin is formed of a conductive material and is formed with a gap extending in a lengthwise direction so as to form a one-turn voice coil, the voice coil is fixed to the voice coil bobbin by a soft bonding agent and a high band signal is supplied to the one-turn voice coil formed of the voice coil bobbin, and the voice coil is connected in parallel with a high bandpass capacitor, and a parallel circuit comprising the voice coil and the capacitor is connected in series with the one-turn voice coil formed of the voice coil bobbin.