Samsung B-Series Soundbar HW B400F 2.0 ch Soundbar with Built in Subwoofer
- Soundbar Speaker
- Corded electric
- Dynamic Driver
- Wall Mount
- More reviewed than 71%
A reasonable, low-cost fix for weak TV speakers in a small to medium room, but it runs out of volume and bass once the space gets larger.
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How it ranks among the 17 soundbar speakers we track
4.1★ across 908 Amazon ratings, Bayesian-smoothed toward the category average.
908 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
400+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 17 soundbar speakers we track - how the scorecard works · full soundbar speakers data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jun 20, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
An entry-level 2.0 channel Samsung soundbar with a built-in subwoofer, controllable from a compatible Samsung TV remote, aimed at buyers who just want clearer dialogue than bare TV speakers without adding a separate subwoofer box.
This is the simplest model in the lineup here, skipping Atmos and up-firing channels for a two-channel design plus one built-in woofer. It reads as well matched to smaller rooms and secondary TVs; more than one reviewer specifically found its 40 watts underpowered once the room gets larger.
- 2.0 channel soundbar with built-in subwoofer
- One-remote control via compatible Samsung TV
- Automatic dialogue amplification
- Do Not Disturb mode for quiet-hours listening
Who it's for
Right for a bedroom, kitchen or small living room TV where the goal is simply hearing dialogue clearly, or an older relative who has trouble hearing a TV's built-in speakers. Not suited to a large or open-plan room, or anyone wanting a surround or booming-bass feel.
What buyers say
From Amazon customer reviews.
The most repeated praise is easy setup and syncing to an existing Samsung TV remote, along with dialogue that comes through clearly enough that one buyer says it let their grandmother hear the TV again. The clearest complaint is volume and punch that falls short in bigger rooms, with one reviewer sending it back specifically for that reason, and a note that only an optical cable ships in the box.
Strengths and trade-offs
Drawn from this product's published specifications.
- One-remote control through a compatible Samsung TV
- Dialogue amplification works without subtitles
- Easy Bluetooth pairing and simple setup
- Night mode lowers volume and bass for late viewing
- 40 watts underpowered for large or open-plan rooms
- Only ships with an optical cable, no HDMI or USB included
- No real surround or deep bass feel by design
Performance notes
The built-in subwoofer and 40 watt output are described by reviewers as plenty for medium to large rooms in terms of volume, but not delivering much low end weight; one reviewer measured it as fine up to about 600 square feet at louder-than-normal levels before the surround effect becomes noticeable. Dialogue amplification is the feature owners mention most, automatically boosting voices without needing subtitles turned on. A night mode lowers both volume and bass so the soundbar can run late without waking a household.
Specifications
| Model | HW-B400F/ZA |
|---|---|
| Dimensions & fit | |
| Item Weight | 4.6 pounds |
| Item Dimensions D x W x H | 4.2 × 25.2 × 2.6 inches |
| Audio Driver Size | 25.2 inches |
| Speaker Size | 25.23 Inches |
| Capacity & performance | |
| Audio Output Mode | Surround |
| Age Range Description | Adult |
| Speaker Maximum Output Power | 40 Watts |
| Power & efficiency | |
| Power Source | Corded electric |
| Construction & materials | |
| Enclosure Material | Metal |
| Color | Black |
| Compatibility & installation | |
| Mounting Type | Wall Mount |
| Subwoofer Connectivity Technology | Wireless |
| Compatible Devices | Smartphone |
| Connectivity Technology | Bluetooth, HDMI |
| Connectivity Protocol | Bluetooth |
| Included components | |
| Unit Count | 1 |
| Warranty & support | |
| Warranty Type | Limited |
| Warranty Description | 1 year |
| Other details | |
| Audio Driver Type | Dynamic Driver |
| Speaker Type | Soundbar |
| Control Type | Remote |
| Number of Audio Channels | 2 |
| Number of Items | 1 |
| Number of Batteries | 2 |
| Is Waterproof | No |
| Additional Features | Lightweight |
| Wireless Technology | Bluetooth |
| Frequency Response | 20 Hz |
| BuiltIn Media | Remote |
| Antenna Location | For Smartphones or Tablets, For Televisions |
| Specific Uses For Product | Gaming, Home Theatre, Party |
How it compares
This product against the closest alternatives we track in soundbar speakers.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Samsung B-Series Soundbar HW B400F 2.0 ch Soundbar with Built in SubwooferThis product | 4.1 / 5 | 908 | 3.7 / 5 |
| Samsung HW-B400F B-Series Soundbar | 4.6 / 5 | 1,600 | 4.1 / 5 |
| JBL Bar 500MK2-5.1 Channel soundbar System with Dolby AtmosJBL | 4.6 / 5 | 207 | 4.2 / 5 |
| Roku TV Wireless Soundbar 2023Amazon Renewed | 4.4 / 5 | 122 | 4.1 / 5 |
| Dell Slim Conferencing Soundbar for MonitorDell | 4.1 / 5 | 60 | 3.8 / 5 |
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Questions about the HW-B400F/ZA
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Will the Samsung B400F be loud enough for a large room?
Reviewers are mixed. Some found 40 watts plenty for medium to large rooms, while others specifically said it was not loud enough for a bigger or open-plan space and returned it.
Does the B400F come with an HDMI cable?
No, one reviewer notes it ships with only an optical cable and power cord, so you will need to supply your own HDMI or USB cable if your TV needs one.
Can the B400F be controlled with my TV remote?
Yes, on a compatible Samsung TV it syncs to the TV's own remote for power, volume and sound effects, so a separate soundbar remote is not needed day to day.