https://support.qscaudio.com/en_US/faq/faq-%7C-why-do-the-la108la112-feature-only-three-adjustable-vertical-splay-angles
FAQ | Why do the LA108/LA112 feature only three adjustable vertical splay angles? - QSC Audio
Answer Typical applications for L Class loudspeakers were defined to include deployment of arrays containing up to six (6) loudspeakers. Extensive calculat