With the best will in the world its totally daft to mount a projector in a sports hall. The clue being in the word sports - which by definition means that balls, shuttlecocks etc will be flying around it. Our set up is a wall mounted screen and speakers, with a projector, amp, dvd player and cabling installed in a wheeled cabinet, it takes a minute or two to get out and set up but never gets bashed by a football