I don't know what happened, but suddenly I can barely hear the sound coming from my speakers. 

Until recently, I could perfectly hear the sound with my volume set around level 20. Now, I have to set the volume level set to 70+ to get the same quality. 

No, no hearing issues (past or present)...and it's not the "Loudness" nor "Night" options. 

Has this happened to anyone else? 

Grim