Is it louder then two fan antminer?
I have not done any DB readings with it since it's in my mining area. There are some big fan's and professional gable fan out there so it is always loud. So it is not really good to get a DB reading of sound but I can handle a lot of heat even in Midwest Summers using lot's of CFM's to move heat.
But it is not a quiet miner with 6000 RPM fan, but the 2 fan model is not quiet either. If you can handle a regular S7 sound I don't see the S7-F1 being an issue. But if your worried about sound honestly neither miner is for you unless you plan on doing something to lessen sound. And on a side note the one fan with higher RPM has done a really good job on cooling, I had planned on adding a 2nd fan but have not done it yet as the one bigger fan has done very well.