TCL S45H or TCL S55H? Which has better bass?
The TCL S55H has better bass than the TCL S45H because it includes a dedicated wireless subwoofer with a 5.5-inch driver and Bass Boost. The S45H is a 2.0 all-in-one soundbar with a built-in bass-reflex port, so it can add some punch but does not reach as deep or sound as full in the low end.
If bass is the main reason you are comparing these two TCL soundbars, the choice is fairly simple: pick the S55H. Its separate subwoofer gives low-frequency sounds more room to breathe, making bass-heavy movies, music, and games feel fuller.
That does not mean the S45H is a bad option. It is smaller and simpler because everything is built into one soundbar. The real question is whether you want stronger bass or a cleaner, more compact setup.
TCL S45H vs S55H for Bass
The biggest difference between these soundbars is their speaker setup.
The S45H is a 2.0-channel soundbar with two speakers and a built-in bass-reflex port. TCL rates it for up to 100 watts of total power. The S55H is a 2.1-channel system with three speakers and a separate wireless subwoofer, with TCL listing up to 220 watts of total power.
| Feature | TCL S45H | TCL S55H |
|---|---|---|
| Channel setup | 2.0 | 2.1 |
| Dedicated subwoofer | No | Yes |
| Subwoofer driver | None | 5.5-inch |
| Bass-reflex design | Built into soundbar | Separate wireless subwoofer |
| Total audio power | Up to 100W | Up to 220W |
| Bass Boost | No dedicated subwoofer Bass Boost | Yes |
| Dolby Atmos | Yes | Yes |
| DTS Virtual | Yes | Yes |
| AI Sonic room calibration | Yes | Yes |
| Available |  | |
The power figures alone do not prove that one soundbar sounds better. The more important point for this particular comparison is the dedicated subwoofer on the S55H.
Why the S55H Has More Bass
A dedicated subwoofer is designed to handle low-frequency sound. That gives the main soundbar more room to focus on vocals, dialogue, and other parts of the audio range.
The S55H’s wireless subwoofer has a 5.5-inch driver, and TCL specifically lists Bass Boost as one of its features. This setup is much better suited to producing the deeper thump you hear in movie soundtracks, action scenes, and bass-heavy music.
Independent testing also points in the same direction. RTINGS describes the S55H as having some bass thump from its dedicated subwoofer, while its S45H testing found that the all-in-one design lacks deep bass extension. RTINGS’ direct comparison says the two models are similar in many areas, but the S55H provides the fuller bass response.
What the S45H Can Still Do
The S45H is not completely lacking in bass. Its built-in bass-reflex port helps it produce more low-end punch than a very basic TV speaker system.
For normal TV watching, sitcoms, news, YouTube videos, and dialogue-heavy shows, that may be enough. But when a soundtrack depends on deep low frequencies, the limits of an all-in-one 2.0 design become easier to hear. RTINGS found that the S45H can produce some boom on kick drums but lacks the deeper bass needed to make heavier music sound full.
How the Bass Difference Feels in Real Use
The difference is most noticeable when the content has strong low-frequency effects.
For example, imagine watching an action movie with explosions, large engines, and heavy soundtrack effects. The S45H can make those sounds louder and more noticeable than your TV’s built-in speakers, but the S55H can add more physical weight to the low end through its separate subwoofer.
Music can show the difference too. A bass guitar, kick drum, or electronic bass line can sound more substantial on the S55H. The S45H can still sound clear, but it is not designed to reproduce deep bass with the same authority.
Games are another good example. If you play games with explosions, vehicles, or cinematic sound effects, the S55H’s subwoofer can make those effects feel more powerful.
Example: Small Bedroom or Apartment
Suppose you have a small bedroom or apartment and mostly watch TV shows, sports, and YouTube. You may not need a large amount of bass.
In that situation, the S45H’s simple design can make sense. You get a compact bar without having to find another place for a subwoofer.
Example: Movies and Bass-Heavy Music
Now imagine you mainly watch action movies and listen to music with strong bass lines. The S55H is the better fit.
Its wireless subwoofer gives it an advantage that the S45H cannot easily match with its built-in speakers alone. You also get the ability to adjust the subwoofer level, which can help you control how prominent the low end feels.
Is the S55H’s Bass Too Much?
Not necessarily.
The S55H is still a budget 2.1 soundbar system, so it should not be treated like a large home-theater setup with a powerful standalone subwoofer. Its compact wireless subwoofer adds meaningful low-end weight, but there are limits to how deep and room-filling the bass can become.
Independent testing describes the S55H as having a reasonably balanced default sound with some bass thump. Another review found that the compact subwoofer provides a surprisingly responsive low end for its size.
This is useful if you want more bass without moving to a much larger sound system.
Which TCL Soundbar Is Better for Different Listeners?
The better choice depends on what you want from the soundbar.
| Your priority | Better choice | Why |
|---|---|---|
| Stronger bass | TCL S55H | Dedicated 5.5-inch wireless subwoofer |
| Deeper low-end sound | TCL S55H | Separate subwoofer handles bass |
| Bass-heavy music | TCL S55H | Fuller low-frequency response |
| Action movies | TCL S55H | More weight behind low-frequency effects |
| Simple setup | TCL S45H | One soundbar with no separate subwoofer |
| Minimal space | TCL S45H | All-in-one 2.0 design |
| Basic TV upgrade | TCL S45H | Simple way to improve over built-in TV speakers |
| More adjustable low end | TCL S55H | Dedicated subwoofer and subwoofer-level control |
Both models share several useful features, including Dolby Atmos, DTS Virtual, AI Sonic room calibration, Bluetooth, HDMI eARC, and multiple EQ modes. The S55H’s main advantage for this comparison is its bass hardware rather than a completely different feature set.
Does the S55H Sound Better Overall?
For bass, yes. For every type of listening, the answer is more nuanced.
The two models are fairly close in their basic soundbar capabilities, but the S55H’s dedicated subwoofer gives it a clear advantage in low-frequency performance. RTINGS also notes that the S55H can get quite loud without much compression, although its surround and height effects are not especially strong.
The S45H has its own advantage: simplicity. There is no separate subwoofer to position, power, or accommodate in your room. That makes it attractive if you care more about a clean setup than strong bass.
So the decision should not be based only on the number of watts. Think about how you actually use your TV.
TCL S45H or S55H: Which One Should You Buy?
If better bass is your main priority, choose the TCL S55H. Its 2.1-channel design, wireless subwoofer, 5.5-inch subwoofer driver, and Bass Boost give it a clear hardware advantage over the S45H. Independent testing also finds the S55H’s bass fuller, while the S45H’s all-in-one design has less deep-bass extension.
Choose the S45H instead if you want a compact all-in-one soundbar and do not care much about deep bass. It can still be a useful upgrade over basic TV speakers, especially for everyday TV watching.
For someone specifically searching for TCL S45H or TCL S55H based on bass, though, the winner is straightforward: TCL S55H.
Frequently Asked Questions
Still deciding between the TCL S45H and S55H? These common questions cover the key differences in bass performance, subwoofer setup, and everyday use so you can choose the model that fits your listening needs.
Does the TCL S55H have more bass than the S45H?
Yes. The S55H has a dedicated wireless subwoofer with a 5.5-inch driver and Bass Boost, while the S45H relies on its built-in soundbar speakers and bass-reflex design. That gives the S55H a fuller and deeper low-end response.
Is the TCL S45H good if I do not need a subwoofer?
Yes. The S45H is a 2.0 all-in-one soundbar designed to provide a simple TV audio upgrade without a separate bass unit. It can produce some bass punch, but it is not the better choice if deep bass is important to you.
Is the TCL S55H better for movies with explosions and action scenes?
Yes, if bass is an important part of your movie experience. The dedicated subwoofer gives the S55H more low-frequency weight, which can make explosions, engines, and other bass-heavy effects feel fuller than they do on the S45H.
Final Verdict
TCL S55H wins for bass. The S45H makes more sense when you want a straightforward, compact soundbar with no separate subwoofer. But if you want stronger bass for movies, music, or games, the S55H is the better match. Its dedicated wireless subwoofer is the key difference, and it directly addresses the main weakness of the S45H’s all-in-one design.
If you are choosing between the two primarily because you want more bass, spend your attention on the S55H rather than the S45H.
