I expect that you need to adjust the projector to low power on the bulb. The difference in fan sound between high and low is significant.
The Z1 is not loud at all. If you think it is loud, you either have it on high power, you are running it in a very hot room, or there is a problem with the projector.
The Z1 is not loud at all. If you think it is loud, you either have it on high power, you are running it in a very hot room, or there is a problem with the projector.