Patent ID: 6604602
Filing Date: 2003-08-12
Classification: H04R

Abstract:
A novel speaker box system for deep bass amplification consists of: 1) a front speaker cover box, consisting of a cylindrical transparent plastic box with a dimension of 50 cm height by 50 cm diameter by 5 mm thickness, one end of which is, blocked with a circular transparent plastic plate having a center hole of 20 cm diameter, in which a trumpet horn of 20 cm long and 12 cm diameter at the center and 20 cm diameter at both ends is attached, and the inner part of the other side is carved with a female thread screw; and 2) a rear speaker box, consisting of a cylindrical opaque plastic box with a dimension of 50 cm height by 50 cm diameter by 5 mm thickness, one end of which is blocked with the same material and the outer side of the other end is carved with a male screw for assembling with said speaker cover box; and 3) a speaker installed therein facing the speaker cover box.