the tv that i have now is ok but theres only one problem i have with this tv is that the speakers arent very powerful

can i buy new speakers for my tv ? the make of my 42in tv is acoustic solutions

please help !

You could buy active speakers & route them via your t.v.'s audio outputs.

and how do i go about these ??

Active speakers are what people tend to buy for their p.c.'s, laptops, they tend to be cheap looking & built, but there are some better ones if you look around, they tend to have 3.5mm audio jacks or phonos on the back of one of the units where you can plug in whatever audio source you want!