speaker sounds horrible

hi, I have had my apple watch 4 almost 4 months now. at first all was great. now all of a sudden my speaker sounds busted. I haven't had it in water, although I have done the water blow out several times and it didn't change anything. I sent my watch to get repaired and in 1 day it came back and they said nothing was wrong with it. well something is wrong!!! I can't use the phone on my watch because it sounds so bad. has anyone had a problem with the speakers?