SeattleSpeakers

Hey all, I just got a PC to TV converter box so I can watch everything I used to watch on my laptop on the TV. But, the sound isn't so great. It's not just the volume level, which I'm sure many speaker systems could remedy, but it's that the dialogue is low while the music and background sounds are high. I'm not looking to spend too much, so maybe solving the problem isn't possible. I'd like to spend around $100. Any recommendations on what would work best?