It will probably sound loud but during considerate hours, who cares? Your not bucking for 120dB @ 40Hz-60Hz, are you?
At my place during the day time when the old bastard upstairs has his grand kids running around at 5:00 PM as they get ready to go home Mon.-Fri. I don't loose my mind. I expect that he can handle a little depth charge periodically. The other thing is that short bursts of LF noise sound like they are coming from the heavens above and hell below. He may not know exactly
where it's coming
from. hehehe