Sorry to hear that D.J. You must have a defective unit like I did with my first one. Like I mentioned in my review mine had a very noticeable LED backlight bleed on the bottom. So I returned it for another one and the second one is good.
The speakers on my unit are good. As you probably already know there are 5 audio adjustments to choose from. The best ones that I have found are movie and music. I normally don't have to raise the sound level beyond 25. So this HDTV is plenty loud. So I have to assume you have a defective unit.
Just do what I did and go to a different store to purchase another one. For the price this is a great HDTV from Samsung. And with the SquareTrade 4 year warranty for $36, you can't go wrong, even if something does go wrong. It's pretty obvious to most folks that Samsung puts out the best quality picture HDTV's on the market today.