We have been researching about 3D spatial sound localization using loudspeakers. However, loudspeaker systems using VBAP methods, usually need a large listening space and a lot of loudspeakers. In this paper we propose a loudspeaker matrix system to improve sound localization on 3D sound system for personal use. Four loudspeakers were set on all vertices of 25 centimeters regular square, 2 matrices on both sides of the listener. Then, we have held audio experiments to confirm the effect of the matrix system. As a result, the loudspeaker matrices system can improve sound localization especially with higher elevation.
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