div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: AL-TEC SOUND PRODUCTS DIVISION 816A LOW-FREQUENCY HORN · 2017 7 24 · The low-frequency loudspeaker enclosure shall be a combination front-loaded horn and bass reflex type providing src=https:reader035fdocumentsinreader035viewer20220714156110645ca172a747cb71b21dhtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: AL-TEC SOUND PRODUCTS DIVISION 816A LOW-FREQUENCY HORN · 2017 7 24 · The low-frequency loudspeaker enclosure shall be a combination front-loaded horn and bass reflex type providing src=https:reader035fdocumentsinreader035viewer20220714156110645ca172a747cb71b21dhtml5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdiv