W-312B is a line array system which is made of one 12＂neodymium housed in bandpass box to deliver ultra powerful bass driver, two 6.5＂neodymium midrange speaker units of well-designed of waves phase horn loading technique, two 3＂titanium neodymium compression drivers and high-performance low-distortion compression driver with innovative horn design of waves phase philosophy.
     W-312B speaker box is trapezoid shaped, hi, mid, low driver units all with independent horn output, which improved the speaker sound, maximum lowed the intervention between the drivers. The precise positioning position between the driver units which verified the speaker box very small, but also to ensure the gap between the cabinet to cabinet minimize. Even several boxes combination can also with a precise point forming a line array group, resulting in excellent sound quality, each box is installed with hanging assembly, can be  convenient for hanging, assembling, which application W-312B line array performance excellent to large stadiums, big outdoor concerts, commercial events, etc.