17' of throw is fine for a 130" diagonal 16:9 screen. If you place the projector in a hush box, you are going to need to make sure that you have allowed for cooling of the projector or you will over heat it. Also the HW55ES is a very quiet projector and I doubt that you need a hush box for it. If we can help you, give us a call. we have 55's in stock.