Polk Signa S2 vs Built-In TV Speakers: Is the Upgrade Worth It?

If you are wondering whether the Polk Audio Signa S2 is worth adding to a TV you already own, here is the short answer from my living room: yes, if dialogue on the evening news makes you lean forward, and yes if a football crowd sounds like it is coming through a phone speaker. No, if you sit close, watch little, and hate extra boxes. I am Curtis Mabry, 58, a retired city bus mechanic in Raleigh. I bought the Polk Audio Signa S2 in January 2026 for one reason. Gloria could not hear the evening news on our new TCL 55 inch T7 without the volume going up to a level that made the whole house feel loud.

The TCL hangs on the long wall across from the couch, about 11 feet away. Before the bar, we used only the TV's built-in speakers. I had never owned a soundbar. I am not an audio reviewer. I just want the 6 o'clock news to sound like people talking, and I want a Sunday football game to have some weight when the pile moves. That is the whole test. The Polk Audio Signa S2 passed it, but not every row on the scorecard. The built-in speakers still win a few things, and I will give them credit.

	Polk Audio Signa S2	Built-In TV Speakers
Dialogue on the evening news	VoiceAdjust lifts voices; I keep the master volume lower	Thin speakers smear voices at 11 feet
Bass and crowd weight	Wireless subwoofer plus 5 full-range drivers	No separate bass
Sports at low volume	Crowd and whistle have body without rattling the room	Crowd sounds flat
Setup	One HDMI cable, power, and subwoofer pairing	Nothing to set up
Remotes on the coffee table	Its own remote comes in the box	The TV remote you already use
Objects in the room	Bar on the console or wall, subwoofer on the floor	Nothing extra
Placement flexibility	Can sit on a console or be wall-mounted	Fixed inside the TV

Where Polk Audio Signa S2 Wins

Dialogue is the first win, and it is the reason the bar is still under the TV. The TCL's built-in speakers are thin because the TV itself is thin. At 11 feet, voices on the evening news had a hard edge, and Gloria kept asking me to turn it up. The Polk Audio Signa S2 has VoiceAdjust, and I use it. I raise the voice level a notch and leave the master volume where it is. Weather segments and city council talk come through clear without the commercials rattling the windows. That one change made the bar worth keeping. It sounds small when I write it down. In practice it changed how the two of us watch television, because nobody has to stop the show and ask what was just said.

The second win is weight. The box includes a wireless subwoofer, and I put it on the floor at the left end of the media console. I did not run a cable to it. I plugged it into the wall and it paired on its own. On a football broadcast, the crowd has a low rumble under it, and a tackle has a thump instead of a tick. The bar itself has 5 full-range drivers, and they fill the room better than the TV's own speakers. I am not going to tell you it sounds like a theater. I will tell you that a kickoff return no longer sounds like a phone playing in another room. The bar is 35.43 inches wide, 3.31 inches deep, and a little over 2 inches tall, so it sits on our low console without hanging over the front lip. I measured the console before I ordered it, because that console is not deep and I did not want a bar perched on the edge.

Sports and news ask for different things, and the bar handles both without me digging through menus. For news, I want voices forward. For football, I want the crowd and the whistle to have some body. The built-in speakers gave me one flat version of both. The Polk Audio Signa S2 gives me a little more room to work. The remote is simple enough that Gloria uses it without a lesson. That matters more than a list of features. If a soundbar needs a tutorial before the morning news, it will sit unused, and I have a garage shelf full of things that needed a tutorial.

Where Built-In TV Speakers Win

The built-in speakers win the simplicity contest, and I am not going to pretend otherwise. They are already there. There is no bar to place, no subwoofer on the floor, no power cord to route, and no second remote on the coffee table. When we bought the TCL in mid-November 2025, before Thanksgiving football, the TV made sound the first time I plugged it in. The Polk Audio Signa S2 took one HDMI cable to the TV's ARC port, one power connection, and a few minutes to pair the subwoofer. That is not hard. I installed a full motion mount into two studs with Marcus helping me lift the TV, so a soundbar was not going to scare me. But it is more than nothing, and saying otherwise would waste your time.

The built-in speakers also win on clutter. The Polk Audio Signa S2 is just over 2 inches tall, and the listing says it will not block the TV's bottom edge or the IR remote sensor. In my setup it does not. But built-in speakers cannot block anything, because there is nothing in front of the TV. If you want the fewest objects in the room, the TV alone is the cleaner answer. I get that. Two objects came into this room when the bar arrived, the bar and the sub, and they are still here because the words got clearer. That is a fair trade for me and it may not be a fair trade for you.

The Evening News Test

Gloria is the real judge here. She watches the morning news with coffee and the evening news at 6. Before the bar, she would say she could hear that they were talking, but she could not tell what they were saying. That is the specific problem. It is not volume. It is clarity. The thin TV speakers push voices and background music through the same small space. The Polk Audio Signa S2 separates them enough that the anchor's voice sits in front. I tried the free fixes first, in December 2025, before I spent anything. I turned the volume up. That worked for about ten minutes, until a commercial came on and the room felt like a fire drill. I tilted the TV down a little on the mount. I sat closer to the set for one broadcast, which is not a way to watch the news. None of it changed the thin voices. The bar changed that. I still use the TV remote for volume sometimes and the bar remote for VoiceAdjust. Two remotes is the trade.

The morning news is a lower bar because the room is quiet. The evening news is harder because the kitchen fan may be running and Gloria may be moving between the couch and the counter. At 11 feet, with the TV angled toward the kitchen side on the mount, the bar keeps dialogue steady. The built-in speakers did not. That is the honest split. The bar did not make the picture better. It made the words easier. If you only care about the picture, skip this whole category. And if you have a partner who does the leaning forward, ask them before you buy anything. They will tell you in one sentence whether the voices are the problem or something else is.

At 11 feet, with the TV angled toward the kitchen, the bar kept dialogue steady. The built-in speakers did not.

The Sunday Football Test

Football is where the subwoofer earns its spot. I am not talking about a bomb going off. I am talking about the low end of a crowd, the referee's whistle, and the thud when a runner goes down. The built-in speakers gave me the play by play and little else. With the Polk Audio Signa S2, the crowd sits under the call. Marcus comes over on Sundays, and he noticed it without me pointing at the bar. The first game we watched with it was a playoff game in January, the Sunday after I hooked everything up. He walked in, sat down, and about a minute into the broadcast he asked what I had done to the TV. He said the game sounded bigger. That is a good word for it. It is not a theater. It is a living room that finally has some bass.

The bar is not magic on a bad broadcast. If the source audio is thin, the bar will not invent a pass rush. Some network mixes are better than others, and a studio halftime set will always sound different from a crowd mic in a stadium. The Polk Audio Signa S2 makes a good broadcast better and a bad one a little more listenable. The 5 full-range drivers do the work across the front, and the wireless subwoofer handles the low end. I placed the sub at the left end of the console and left it there. I did not move it around for a week. I did not need to. The one thing I check before kickoff is that nothing got pushed in front of it, because it sits low and the end of the console collects shoes.

Who Should Buy Which

Buy the Polk Audio Signa S2 if you are in a room like mine. One TV, couch about 11 feet back, a news watcher who needs dialogue clear, and a football watcher who wants the crowd to have some body. Buy it if the TV is thin and the built-in speakers make voices sound small. Buy it if you are willing to place a bar and a subwoofer and keep one more remote nearby. The Polk Audio Signa S2 is a practical fix, not a hobby.

Stick with the built-in TV speakers if you sit closer, watch mostly alone, and do not want another box in the room. Stick with them if dialogue is already clear at a volume that does not bother anyone. Stick with them if you hate the idea of a subwoofer on the floor. The built-in speakers are not bad. They are limited by the size of the TV. If those limits do not bother you, the best upgrade is the one you do not buy.

What I'd Tell a Neighbor

I would tell a neighbor to test the news first, not a movie. Turn on the 6 o'clock news. Sit where you sit. If you can follow the anchor without leaning forward, you may not need the bar. If you catch yourself reading the closed captions during a weather report, you do. That was my test. The Polk Audio Signa S2 fixed it. The picture on the TCL did not change. The room did.

I would also tell them to plan the space before the box shows up. The bar is 35.43 inches wide, 3.31 inches deep, and 2.15 inches tall, and it weighs about 3.9 pounds, so setting it on a console is a one-person job. The subwoofer needs a spot on the floor near an outlet, and mine is at the left end of the media console where nobody walks. The bar can sit on a console or be wall-mounted. I put ours on the low media console under the TV and ran one HDMI cable to the TV's ARC port. The wireless subwoofer paired without a cable. That is the whole install, and it took me less time than finding the right input on the old Samsung ever did. If that sounds like too much, the built-in speakers are already there. If it sounds like a fair trade for clear dialogue at 6 o'clock, the Polk Audio Signa S2 is the one I bought.