Wondering why your favorite TV shows and movies sound so shrill and tinny? The blame lies with your HDTV’s built-in speakers, which (despite what the salesperson said) are probably pretty shabby.

Luckily, there’s an easy way to upgrade the sound in your living room—and no, it doesn’t involve juggling six speakers or stringing yards and yards of cable.

The secret? A soundbar, a long, thin speaker that you can simply place in front of your HDTV (or mount on a wall if you’re feeling ambitious). Connect the soundbar to your HDTV with a single cable, then get ready for lush stereo sound. One of the better options I’ve seen on Amazon: Vizio’s best-selling SB3821-C6, a sleek soundbar with a wireless subwoofer (which adds much-needed oomph to your sound). On sale for $138 (normally $159), the SB3821-C6 makes for one of the cheapest—and easiest—ways to sweeten the sound in your living room.

Check out the Vizio SB3821-C6 soundbar on Amazon!

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