Thankfully, Samsung's 2011 slim TVs aren't the sonic no-go zones they were in previous generations. The Samsung UE40D5520 certainly manages to deliver solid vocals and a decent degree of detail and soundstage width with relatively tame footage.
But at the same time, a pretty serious lack of bass means the speakers can become a bit harsh and unconvincing when pushed harder.
The Samsung UE40D5520 40-inch TV has more features than you have any right to expect for its price. It also looks prettier than you have any right to expect for the money, and it performs better than you have any right to expect for the low cost. And if that's not the definition of a bargain TV, we don't know what is.