Cyber Acoustics USB Speaker Bar (CA-2890) – Stereo USB Powered Speaker, Easily Clamps to Monitor, Convenient Controls
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AI Verdict
This is a cheap, space-saving USB soundbar for anyone who needs audio better than their laptop's but doesn't care about bass for music.
This speaker is a strong fit only if your main goals are saving desk space and simplifying cables. Its clever clamp design and single-cable USB connection are excellent for minimalist setups. However, the audio quality is a significant compromise, with almost no bass, making it a weak fit for music or media enjoyment.
If you need better audio fidelity, look for computer speakers with larger drivers (over 1.5") and a dedicated AC power source instead of relying solely on USB power.
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Critically weak dimension
Amazon rating vs actual quality
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Pros
- A single USB cable handles both power and audio, decluttering your desk.
- The clamp mount saves desk space by attaching directly to the bottom of most monitors.
- It gets surprisingly loud for a small, USB-powered speaker without much distortion at max volume.
- Includes a USB-A to USB-C adapter, making it compatible with modern laptops.
- Features convenient, easy-to-reach physical buttons for volume, mute, and play/pause.
Cons
- Sound quality is tinny and almost completely lacks bass, making music sound thin.
- The clamp only opens to about 1 inch, so it won't fit on thicker or curved monitors.
- The green power LED and red mute LED are reported by some users to be distractingly bright.
- It does not have a built-in microphone.
Dimension Scores
Users consistently report tinny, thin sound that is clear for voice but lacks any body or bass for music.
The speaker gets surprisingly loud for being USB-powered, but there is virtually no bass to speak of.
A single USB-A cable for both power and audio is incredibly convenient, and the included USB-C adapter is a fantastic addition.
The all-plastic build is lightweight and the monitor clamp is a clever, space-saving feature, though its 1-inch limit is a drawback.
Best For
- Minimalist desk setups where clearing clutter is the top priority.
- Upgrading from poor built-in laptop or monitor speakers for voice calls and YouTube videos.
- Quiet office or cubicle environments needing basic, forward-facing audio.
- Users who want a simple, plug-and-play solution with no extra drivers or power bricks.
Not Recommended For
- Anyone who listens to bass-heavy music while they work or game.
- Users with thick-bezel or older monitors that the 1-inch clamp won't fit on.
- Home theater or immersive gaming setups.
Watch Out For
- The clamp's maximum opening is one inch, so measure your monitor's bottom bezel before buying to ensure it will fit.
- The always-on green power LED is very bright for some users, who resort to covering it with tape.
- While it gets loud, the sound is very focused on mids and highs with virtually no low-end, which can be fatiguing for music.
- The speaker is not compatible with TVs or gaming consoles; it's designed specifically for computers.
Full Specifications
| UPC | 646422301679 |
| ASIN | B09DJ1ZM5W |
| Brand | Cyber Acoustics |
| Color | Black - USB |
| Shape | Rectangular Bar |
| Style | USB |
| Material | Plastic |
| Set Name | False |
| Department | unisex |
| Model Name | CA-2890 |
| Unit Count | 32.0 Ounce |
| Item Weight | 11.2 ounces |
| Manufacturer | Cyber Acoustics |
| Power Source | USB Power |
| Speaker Size | 1.5 Inches |
| Speaker Type | Soundbar |
| Input Voltage | 5 Volts (DC) |
| Is Waterproof | FALSE |
| Mounting Type | Clamp Mount,Plug Mount |
| Series Number | 2890 |
| Warranty Type | Manufacturer |
| Control Method | Touch |
| Number of Items | 1 |
| Special Feature | LED Light, Plug and Play |
| Woofer Diameter | 1.5 Inches |
| Tweeter Diameter | 1.5 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Item model number | CA-2890 |
| Compatible Devices | Laptop, Personal Computer |
| Frequency Response | 2000 Hz |
| Number Of Circuits | 1 |
| Product Dimensions | 1.3"D x 8.3"W x 2.8"H |
| Subwoofer Diameter | 1 Inches |
| Included Components | speaker |
| Indoor/Outdoor Usage | Indoor |
| Customer Package Type | FFP |
| Number of Power Levels | 1 |
| Connectivity Technology | wired |
| Specific Uses For Product | personal computer audio enhancement, multimedia consumption, and online communication |
| Recommended Uses For Product | For Computers |
| Speaker Maximum Output Power | 10 Watts |
| Subwoofer Connectivity Technology | Wired |
| Wireless Communication Technology | usb |
| Global Trade Identification Number | 00646422301679 |
| Surround Sound Channel Configuration | 2.0" or "NA |
What Buyers Say
The most common reaction to this speaker is surprise at how loud it gets using just a single USB cable. That's immediately followed by the realization that it has absolutely zero bass, making it sound tinny. Its main purpose is to save desk space, and the monitor clamp does that perfectly, assuming your monitor bezel is less than an inch thick. People buy this to replace terrible laptop speakers for Zoom calls and podcasts, and for that, it's a huge improvement. Many users complain about the bright green power LED that can't be turned off, and some end up covering it with tape.
“it's not for music, at all. but it got my speakers off my desk, killed a power cord, and now i can actually understand people in meetings. for that price it's a win.”
Common Praise
- The single USB cable for both power and audio is a game-changer for desk cleanliness.
- Frees up a ton of desk real estate by clamping to the monitor.
- Plug-and-play setup is instant on Windows, Mac, and Chromebook with no drivers needed.
- Volume gets much louder and clearer than most built-in laptop speakers.
- Front-facing controls for volume and mute are convenient and easy to access.
Common Complaints
- The sound is described as 'tinny' with a complete lack of bass.
- The clamp doesn't fit on monitors with thicker bottom bezels (over 1 inch).
- The green power LED is too bright and always on.
- Audio can sound thin and fatiguing when listening to music for long periods.
Ownership Tips
- You will probably end up putting a small piece of electrical tape over the green power light, especially if your computer is in your bedroom.
- The convenience of having volume and mute buttons right under your monitor is something you quickly get used to.
- Don't expect to be able to just clip it to any monitor; you really have to check the thickness of the bottom bezel first.
- It's a definite upgrade for dialogue in videos and calls, but you'll switch to headphones the moment you want to listen to a song.
Frequently Asked Questions
Does the CA-2890 have a built-in microphone?
No, this specific model (CA-2890) does not have a microphone. You would need to look at other models in the series like the CA-2890PRO for that feature.
How wide does the monitor clamp open?
The clamp opens to a maximum of 1 inch (or about 25mm). It's designed for slim, flat-panel monitors and may not fit older or thicker models.
How long is the USB cable?
The attached USB cable is approximately 5 to 6.5 feet long.
Can I turn off the bright LED light?
No, the green power LED stays on as long as the speaker is plugged in. Some users have reported it as being distractingly bright.
Does it work with a TV or PlayStation/Xbox?
No, this speaker is designed for computers (PC, Mac, Chromebook) and will not work with TVs or gaming consoles.
Does it connect via a 3.5mm audio jack?
No, it uses a single USB connection for both power and digital audio. It does not use a 3.5mm jack.
Buying Guide
You're buying this for the form factor, not the audio quality. The whole point is to get rid of clutter. It uses one USB cable for everything and clips onto your monitor to free up desk space. Think of it as a permanent, better-sounding upgrade to your laptop speakers. If you listen to music while you work, you will be disappointed by the total lack of bass.
USB Power & Audio
Instead of needing a power outlet brick and a separate audio cable, this speaker does it all through one standard USB port. This makes your desk setup much cleaner and simpler.
Clamp Mount
This is the key space-saving feature. The speaker physically attaches to the bottom of your monitor, getting it completely off your desk. Just make sure your monitor's bottom edge is thin enough (under 1 inch).
10 Watts Output
This measures how loud it can get. For a small, USB-powered bar, 10W is surprisingly loud and more than enough for personal use at a desk, but don't expect it to fill a large room with rich sound.
Alternatives
If this isn't enough, search for 2.0 or 2.1 channel computer speakers that have a dedicated AC power adapter. That separate power source is what allows for larger drivers and the power needed to produce actual bass.
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