Chahine is an in-demand FOH/monitor engineer, especially for large ensembles. He has managed up to 256 inputs for Kohar from Armenia, Ensemble Ambrosious from France, and other orchestras in a variety of acoustically challenging venues - cathedrals, outdoor festivals and concert halls

Most of his studio work also continues live when artists request that Chahine join them in concerts to recreate their album sound in a live setting.

Understanding the physical properties rooms and live music, he also implements sound design in performance venues. He recommends acoustic treatment and best practices for venue owners to create ideal listening and performing conditions.