Weak sound? how to revert it back?

Okay, I was messing around with the Display Setting so I can get my T.V. to be the second monitor. However, when I checked the extand the desktop to this monitor, and this is my main monitor, the sound got much weaker on my computer monitor. Now, whenever I watched a movie, or play a sound anywhere (i.e.netflix, youtube..etc), I can hear it but it's SOO low. It's almost impossible to hear it unless I put the speakers next to my ear. Last time this happened, I restarted the computer and it was fixed, but not this time. The other thing that used to work was to unplug the speakers from the computer input. That doesn't work again.

Does anybody know how to fix this?

Actually, I did. 3 different kind. You can hear the beat/intrumental/soundtrack of the music, but the lyric, or dialogue volume is soo low.

Happened to me and it coincided with my pc randomly restarting = my power supply was crapping out.

I replaced it and now it's completely fixed.

If you have a spare power supply lying around somewhere, try using it and see if it solves your issue.

It can't be my power supply. This computer is almost new. 900Volts

Actually, I did. 3 different kind. You can hear the beat/intrumental/soundtrack of the music, but the lyric, or dialogue volume is soo low.

Berserker1_5

How many speakers do you have? And does the speaker configuration in Windows match?

I have 3 different sets of of speaker. They all have 2x speakers. I don't understand when your question, "does the speaker configuration in Windows match?"

Control Panel -> Sound, make sure its reporting Stereo speaker setup.

Yup, it correct.