You can buy S9s for dirt cheap and modify them to significantly reduce the noise: https://www.thingiverse.com/thing:5877154

As far as I know, there isn't a miner that you can buy off the shelf that's not loud without modifications or building some sort of muffler. My goals were to prove the concept of utilizing the heat from the Asics now I have to work on reducing the noise. Especially the clothes dryer.

Noise was a concern for me so I removed stock fans on s19 replaced with ac infinity fan cloud line series( very quiet) but they cost couple hundred.