"Let the world listen to our voice" This simple word, always imprinted in the heart of the staff of ...
Date:2016-09-18
Speaker sound cone increase af...
[abstract] this article is to study using the sound basin of special coating material on the surface...
Date:2016-05-17
A regulating speaker unit 2, 3...
Abstract: this paper discusses a kind of through the use of the means of timbre regulator to adjust ...
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