Manufacturer | Fosi Audio |
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Place of Business | ShenZhen city, Guangdong province 518000,CN |
Item model number | TB10D |
Product Dimensions | 10.49 x 14.2 x 3.99 cm; 1.1 kg |
ASIN | B08MJBG53V |
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Fosi Audio TB10D 2 Channel Stereo Amplifier, Class D Mini Power Integrated Amplifiers 600W for Passive Speakers/Bass Shaker, Home Audio Component Desktop Amp Receiver TPA3255 with Bass Treble Control
Purchase options and add-ons
Item dimensions L x W x H | 10.5 x 14.2 x 4 Centimetres |
Voltage | 230 Volts |
Manufacturer | Fosi Audio |
Maximum supply voltage | 25 Volts |
Mounting type | Tabletop Mount |
Brand | Fosi Audio |
Number of channels | 2 |
Output power | 100 Watts |
Package type | Box |
Specification met | FCC |
About this item
- 300W PER CHANNEL POWER: With the high-performance TPA3255 chip, the TB10D 2 channel amplifier delivers 600W of power. It can drive bookshelf speakers with 2-8 ohms effortlessly, ensuring clean, dynamic sound
- UNLOCK FLEXIBILITY: It blends flawlessly into your existing audio ecosystem. Whether you're adding warmth to a turntable with a phono preamp or delivering rumble from gaming with a bass shaker, the mini amp provides rich, immersive audio
- SOUND TAILORING: With meticulously crafted bass and treble knobs, the speaker amplifier allows you to tweak the sound to your personal preferences. The inclusion of a power switch adds convenience, making operation a breeze
- UNIVERSAL CONNECTIVITY: The RCA input and passive speaker output make it easy to connect to audio systems in most places, whether in a living room, home theater, game room, dining area, or personal studio
- COMPACT YET MIGHTY: It's compatible with a wide range of sound equipment, including phones, computers, DVDs, CD players, PCs, laptops, and TVs. Meanwhile, it's safeguarded by its built-in protection circuits, ensuring stable operation and prolonging the lifespan
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Product information
Technical Details
Additional Information
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Product details
- Product Dimensions : 10.49 x 14.2 x 3.99 cm; 1.1 kg
- Date First Available : May 28 2021
- Manufacturer : Fosi Audio
- Place of Business : ShenZhen city, Guangdong province 518000,CN
- ASIN : B08MJBG53V
- Item model number : TB10D
- Country of origin : China
- 鶹 Rank: #4,314 in Electronics (See Top 100 in Electronics)
- #13 in Audio Component Amplifiers
- Customer Reviews:
Safety and product resources
Safety documents
Product Description

Power Supply Voltage Range: 18V-48V
Fosi Audio TB10D Mini Power Amplifier
Install this compact amp and hooked it up to a pair of your bookshelf speakers.
- Output Power: 300W x2 (Note: You need a more powerful power supply to get the MAX 300W x2 power output, such as 48V/10A)

2.0 Channel Stereo Amplifier
For those seeking a 2-channel amplifier that supports solely RCA inputs, the TB10D amplifier stands ready. It adapts the TPA3255 chip to deliver a clean, crisp sound that invigorates your bookshelf speakers with robust performance.
- Input: RCA; Output: Passive Speakers
- SNR≥ 90dB; THD≤ 0.3%
- Power Supply: 32V 5A
- Product Dimensions: 4.13 x 5.59 x 1.38 inches
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Small Footprint, Clean Sound Quality
Enjoy powerful audio in a compact design
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Customize Your Sound Profile
Adjust bass and treble to your liking for a tailored listening adventure
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High-Efficiency
Delivering high power efficiency and minimal idle losses, ensuring a pristine audio experience
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Enhance Your Vinyl Sound
Brings Your Turntable to Life
Pair the TB10D with Fosi Audio's BOX X2 or BOX X5 phono preamps for a vibrant vinyl experience
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Harmony for Your Space
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Does it support Bluetooth and WiFi?
No, it doesn’t. It only supports RCA inputs.
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How does the power output of the TB10D amplifier change?
The power output of the TB10D varies with the power supply specifications and the impedance of the speakers, please refer to the power comparison table for details.
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Can it drive subwoofer speakers?
No, it can’t. It’s a 2-channel amplifier, that only can drive a pair of passive speakers.
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How can I try when I have some problems?
-Make sure all the cables are fully connected.
-Adjust the treble and bass control of the power amplifier to achieve the right tone.
-Please try to change the sound source and cables.
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Customer Reviews
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4.4 out of 5 stars 1,247
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4.4 out of 5 stars 2,052
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4.3 out of 5 stars 1,125
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4.6 out of 5 stars 689
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Type
| 2.0 CH Amp | 2.0 CH Amp | 2.0 CH Amp | 2.0 CH Mono Amp |
MAX Power Output
| 300W x 2 | 100W x 2 | 300W x 2 | 190W x2/ 300W x1 |
Input
| RCA | RCA | RCA | 䴡+ݳ+¼”T鳧 |
Output
| Passive Speakers | Passive Speakers | Passive Speakers+Pre-Out | Passive SPK +Sub-out |
Treble & Bass Control
| ✔ | ✔ | ✘ | ✘ |
THD
| ≤ 0.3% | ≤ 0.04% | <0.003% | <0.006% |
SNR
| ≥ 90dB | ≥ 98dB | ≥110 | ≥106 |
Terminating Impedance
| 2-8 Ohm | 2-8 Ohm | 2-8 Ohm | 2-8 Ohm |
Power Adapter
| 32V/5A | 24V/4.5A | 32V/5A | 48V/5A |
Work Voltage
| AC 110V - 240V | AC 110V - 240V | AC 110V - 240V | AC 110V - 240V |
From the brand

Amplifying Your Voice, Shaping Our Innovation
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Guided by our mission of "Redefining HiFi with Unmatched Value", Fosi Audio continues to fuel its passion for the Hifi industry, ramp up R&D efforts, and co-create new HiFi equipment with users. We pledge to bring more amazing Hifi gear with high value for the price, innovative design, cutting-edge technology, and premium quality, to audiophiles worldwide.
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Fosi Audio V3
TPA3255 Class D Home Audio Mini Speaker 2 Channel Amp 300 Watts x2
Compare with similar items
This Item ![]() Fosi Audio TB10D 2 Channel Stereo Amplifier, Class D Mini Power Integrated Amplifiers 600W for Passive Speakers/Bass Shaker, Home Audio Component Desktop Amp Receiver TPA3255 with Bass Treble Control | Recommendations | |||||
Try again! Added to Cart spCSRF_Treatment Add to Cart | Try again! Added to Cart spCSRF_Treatment Add to Cart | Try again! Added to Cart spCSRF_Treatment Add to Cart | Try again! Added to Cart spCSRF_Treatment Add to Cart | Try again! Added to Cart spCSRF_Treatment Add to Cart | Try again! Added to Cart spCSRF_Treatment Add to Cart | |
Price | -15%$93.49$93.49 Was: $109.99 | $79.99$79.99 | $199.99$199.99 | $109.99$109.99 | -15%$110.49$110.49 Was: $129.99 | -15%$127.49$127.49 Was: $149.99 |
Delivery | Get it by Tuesday, Aug 12 | Get it by Tuesday, Aug 12 | Get it by Tuesday, Aug 12 | Get it by Tuesday, Aug 12 | Get it by Tuesday, Aug 12 | Get it by Tuesday, Aug 12 |
Customer ratings | ||||||
Sold by | Fosi Audio | FosiAudioDirect | Fosi Audio | FosiAudioDirect | Yima Top | FosiAudioDirect |
number of channels | 2 | 2 | 2 | 3 | 2 | 2 |
voltage | 230 volts | — | 48 volts | — | 48 volts of direct current | — |
output power | 100 watts | 100 watts | 235 watts | 200 watts | 600 watts | 600 watts |
specification met | FCC | TUV | FCC | — | — | Manufacturer's Quality Standards |
mounting type | Tabletop Mount | Surface Mount | Surface Mount | Freestanding | Speaker | Freestanding |
Brand in this category on 鶹
Brands in this category on 鶹
Customer reviews
Customers say
Customers like the sound quality, power, and compact size of the electronic component amplifier. They mention it has reasonable volume, is powerful, and performs way beyond expectations. Customers also like the build quality, cooling, compatibility, and appearance.
AI Generated from the text of customer reviews
Customers like the sound quality of the product. They mention it has reasonable volume, treble and bass control. Some say it runs dead quiet and has plenty of room to make it even louder. They also say it's capable of driving passive speakers with ease.
"...High quality built! No humming, no hiss, just pure clean sound with great bass and treble at any volume! There is practically no audible distorsion!..." Read more
"...Lots of power - deep soundstage and bass. Super quiet noise floor...." Read more
"...I have my Sony pst20 turntable hooked upto it and it sounds great. Was on sale for $95...." Read more
"...The EQ control will cause noise and is not effective." Read more
Customers are satisfied with the power of the product. They mention it's a perfect high power amplifier for quality bookshelf speakers. Some say it's plenty of power to drive two bookshelf Tannoy speakers and can drive my paradigm studios no problem.
"...D digital technology, providing exceptional performance and impressive power output...." Read more
"Good build quality, small yet powerful...." Read more
"Great little amp !!!..." Read more
"...Everything works as it should. Plenty of power to drive two bookshelf Tannoy speakers. Very happy with purchase." Read more
Customers are satisfied with the performance of the product. They mention it performs way beyond expectations, works well to replace an old receiver, and sounds pretty decent. Some say it's the best they've heard.
"...but it doesn't have a cheap feel to it or look and works great and it's good for the money. thats 5 stars." Read more
"...harnesses the power of Class D digital technology, providing exceptional performance and impressive power output...." Read more
"Came very promptly. Nice size, solid feel. Everything works as it should. Plenty of power to drive two bookshelf Tannoy speakers...." Read more
"...oh well... For the price it is surprisingly good system. But be realistic......" Read more
Customers like the compact size of the amplifier. They mention it's small, but powerful, and fits perfectly on a karaoke stand.
"Great little amplifier. Using with a Raspberry Pi and Just Boom dac, driving a pair of vintage Wharfedale Diamond speakers - sound is fantastic." Read more
"...The Fosi Audio TB10D is aesthetically appealing with a compact and well-constructed design...." Read more
"Came very promptly. Nice size, solid feel. Everything works as it should. Plenty of power to drive two bookshelf Tannoy speakers...." Read more
"...I'd say it puts out about 50 usable watts into 8 ohms. Awesome size vs. performance...." Read more
Customers are satisfied with the build quality of the product. They mention it's highly reliable, perfect for quality bookshelf speakers, and has a very high quality feel.
"...of durability, while the control knobs and connectors feel sturdy and reliable...." Read more
"Excellent product as usual from fosi audio they fixed the original one !..." Read more
"Came very promptly. Nice size, solid feel. Everything works as it should. Plenty of power to drive two bookshelf Tannoy speakers...." Read more
"...Pros: Great build quality Excellent sound quality, to my ear it’s on par with the RZ50 and BT30D Pro Low noise floor..." Read more
Customers are satisfied with the cooling capabilities of the product. They mention it stays cool, efficient power usage, and reduces heat generation.
"...employed in the TB10D ensures efficient power usage, reducing heat generation and improving overall energy efficiency...." Read more
"...It also easily drives my 100W tower speakers. I doesn't get hot (that's the class D amp magic)...." Read more
"...Definitely 5-star performance, and somehow it remained cool to the touch throughout this demanding test...." Read more
"...wires and that big hunk of metal also had the benefit of eliminating inductive heating and the whole thing runs cooler...." Read more
Customers like the compatibility of the product. They mention it's great for desktop PC speaker setups, accommodating a wide range of audio sources, and perfect for small room karaoke. Customers also say it provides background music in a commercial location and is a great way to get into passive speakers as an alternative to a soundbar for TV use.
"...The Fosi Audio TB10D boasts impressive versatility, accommodating a wide range of audio sources...." Read more
"...It is presently hooked up to medium sized tower speakers. It is being fed by a Wiim mini and external DAC of a Music Hall CD player...." Read more
"...their crappy TV speakers can provide, this amplifier opens up a whole world of passive speakers (bookshelf and towers) with the available 300W per..." Read more
"The Fosi Amp is perfect for my small room Karaoke! I had a huge 100watt amp that has been acting up. Plus it was causing hum and feedback...." Read more
Customers like the appearance of the electronic component amplifier. They mention it's stunning, has a sleek aluminum chassis that exudes a sense of durability, and is a very nice little unit.
"...Design and Build Quality: The Fosi Audio TB10D is aesthetically appealing with a compact and well-constructed design...." Read more
"...Here is the my two penny's opinion. In appearance, both machine looks great...." Read more
"Very nice looking, surprisingly good sounding, little amplifier...." Read more
"It's stunning...." Read more
Reviews with images

The upgrade version is better than I expected
Top reviews from Canada
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- Reviewed in Canada on July 11, 2023Verified PurchaseIntroduction:
The Fosi Audio TB10D 600W TPA3255 Power Amplifier is a remarkable upgrade in the realm of home audio and HiFi stereo systems. This integrated mini passive speaker amp harnesses the power of Class D digital technology, providing exceptional performance and impressive power output. In this review, we will delve into the key features and capabilities of the upgraded version, highlighting its strengths and potential areas for improvement.
Design and Build Quality:
The Fosi Audio TB10D is aesthetically appealing with a compact and well-constructed design. The amplifier's sleek aluminum chassis exudes a sense of durability, while the control knobs and connectors feel sturdy and reliable. The thoughtful layout of input and output ports enables convenient and hassle-free connections, ensuring a smooth setup process.
Performance and Power Output:
Equipped with the TPA3255 chipset, the TB10D delivers a substantial power output of 600W, making it capable of driving passive speakers with ease. This amplifier exhibits excellent audio quality, offering a clean and detailed sound reproduction across the entire frequency spectrum. The Class D digital amplification technology employed in the TB10D ensures efficient power usage, reducing heat generation and improving overall energy efficiency.
Versatility and Connectivity:
The Fosi Audio TB10D boasts impressive versatility, accommodating a wide range of audio sources. It features RCA and 3.5mm auxiliary inputs, allowing users to connect various devices such as smartphones, computers, or CD players. Additionally, the inclusion of a dedicated subwoofer output enhances the system's flexibility, enabling users to enhance their audio experience by adding a separate subwoofer.
User-Friendly Operation:
Operating the Fosi Audio TB10D is a breeze, thanks to its intuitive control layout. The front panel features a power switch, volume knob, and input selection buttons, providing straightforward access to the amplifier's essential functions. The inclusion of LED indicators for power status and input selection adds to the user-friendly nature of the device.
Limitations and Considerations:
While the Fosi Audio TB10D excels in numerous areas, there are a few aspects that could be improved. Firstly, the absence of a remote control limits the convenience of adjusting volume and other settings from a distance. Additionally, the lack of Bluetooth connectivity might be a drawback for users who prefer wireless audio streaming.
Conclusion:
The [Upgraded Version] Fosi Audio TB10D 600W TPA3255 Power Amplifier is a commendable addition to any home audio or HiFi stereo system. With its robust build quality, impressive power output, and excellent sound reproduction, this amplifier offers an enriching audio experience. While the absence of a remote control and Bluetooth connectivity may be minor drawbacks, the overall performance and value for money make the TB10D a compelling choice for audio enthusiasts seeking a reliable and high-performing power amplifier.
- Reviewed in Canada on April 30, 2025Verified PurchaseCame very promptly. Nice size, solid feel. Everything works as it should. Plenty of power to drive two bookshelf Tannoy speakers. Very happy with purchase.
- Reviewed in Canada on January 5, 2023Verified PurchaseSound is quite good as long as you don't push it. I'd say it puts out about 50 usable watts into 8 ohms. Awesome size vs. performance. I adjusted the bass up a bit and set the treble back a bit and overall sound is pleasant. It is presently hooked up to medium sized tower speakers. It is being fed by a Wiim mini and external DAC of a Music Hall CD player. It is in a relatively large room. So in summary not a bad experience at all. Could be a good place to start your musical road.
- Reviewed in Canada on December 20, 2022Verified PurchaseHow does it sound?
I conducted a comparison between the Onkyo RZ50 in pure output mode (RCA) and the BT30D Pro (RCA), both using RP5000F towers and an amp selector switch. I was unable to hear any difference between them, which is good news. It appears that the well-implemented TPA3255 chip sounds the same in all cases.
Everytime I plugged in the male power plug, there were sparks. I can see and hear it.
The power measurement:
Setup:
RCA Input signal @ 1000hz, 1Vrms
Tone control at half way
L & R both driven, 8 ohm load, 50W rms per channel, before clipping. Volume knob at 2.5 o’clock
L & R both driven, 8 ohm load, 60W rms per channel, clipping, Volume knob at 3 o'clock
L & R both driven, 4 ohm load, 85W rms per channel, before clipping. Volume knob at 2.5 o’clock
I wasn't able to reach clipping at 4 ohm load. Either the amp or power adapter goes into OCP protect mode everytime.
Noise was tested at maximum volume. There was a barely audible hiss from the speakers, which could only be heard if you put your ear close to the tweeter. There is no circuit to shut off the signal because it is not audible when sitting away from the speakers.
The TPA3255 chips are efficient and can produce a significant amount of power for their size.. You can increase the power output of these chips by upgrading upto 48V power adapter. However, because on the heat issue, I wouldn't do it unless you modify the enclosure with active cooling.
It appears that many manufacturers using this chip have set their power limits based on the capabilities of the power adapter.
Pros:
Great build quality
Excellent sound quality, to my ear it’s on par with the RZ50 and BT30D Pro
Low noise floor
Excellent price / performance ratio
Cons:
Thermal management
Sparks
- Reviewed in Canada on December 25, 2023Verified PurchaseI just received the upgraded version of this little amp. High quality built! No humming, no hiss, just pure clean sound with great bass and treble at any volume! There is practically no audible distorsion! I'm a 60 yr old DJ and used to good old class A amps. Don't get me wrong: this isn't a DJ amp, loll, but it packs enough punch for a little house party! I tried it with a pair of 60W, 6 ohm Kenwood speakers with small 5 inch drivers and it really delivered, even with the supplied 32V, 5A power supply. It also easily drives my 100W tower speakers. I doesn't get hot (that's the class D amp magic). The bass and treble set at 12 O'clock, you can already feel the punch and enough treble. I then pushed the bass to 2 O'Clock to my liking. The mids are slightly attenuated like if you pressed the good old "loudness" button... I listen to dance stuff like Loud Luxury, Meduza, Dua Lipa, Lizzo, Rema, Selena Gomez. It's perfect for that style. I also tried my reference guitar song: I think of you from G.Charles and wow! I would give this amp 6 stars! It would be nice if the added a "balance" button. I would certainly like to try the bluetooth Fosi audio amp BT20A pro...
Top reviews from other countries
- Ian CReviewed in the United Kingdom on January 7, 2023
5.0 out of 5 stars This little guy packs a punch!
Verified PurchaseThis little amp drives my 3-way speakers very nicely. Nice clean sound and bass. It's small and compact and will save you space on your shelf, desk etc. Good price too. My nitpicking downsides is that the power supply is fairly large, about half the size of the amp itself so it might not save you that much space depending where you want to put it. Also, if you want to use the full power of the amp you need a better power supply which I'm not sure where you would purchase one from. A quick look at Fosi's site found that they do not sell it but the power supply included should suit most people. The on/off switch is retro which is cool but it looks fragile and if it breaks then you're stuck unless it breaks on the on position. I do like the simplicity of it. No built in radio, remote control or bluetooth which is fine by me. No headphone socket but that's okay too as I have one on my sound mixer. Overall, I really like this amp and hope it lasts a long while!
- TJReviewed in Sweden on August 6, 2025
5.0 out of 5 stars Great value compact amp
Verified PurchaseNice compact little amp which works perfectly for driving a pair of ceiling-mounted Monitor Audio speakers connected to a WiiM. Can drive speakers down to 2Ω. Great value/performance combination if you don't need added extras such as a remote control. The only thing I miss is a relay input, so that the amp can be turned on or off automatically from an input source (e.g. from a WiiM or similar device), as that would be useful for situations like mine where the amp is driving built-in speakers and thus positioned out of the way in a cupboard. Also worth knowing is that the PSU that is shipped with the amplifier is large (a similar size to the amp itself).
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Sergio VillanuevaReviewed in Mexico on December 25, 2023
5.0 out of 5 stars Excelente compra!
Verified PurchaseGrata sorpresa que me dió este pequeño amplificador... al menos con mis Polk Audio monitor 60 suena muy bien, compré primero el Sony str dh190 que tenía buenas opiniones pero ese sonaba hueco en los graves cómo sin cuerpo y muy chillón en los agudos aunque tenía buenos medios pero este Fosi lo hace todo bien, me tomó vários días acostumbrarme a el pero cada vez me agrada más, incluso en canciones que he escuchado mil veces antes por años ahora que las escucho por primera vez con el salen de repente sonidos que no había notado y me dejó sorprendido la potencia que tiene siendo tan pequeño en tamaño, en fin por el precio me pareció excelente.
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Winfried schatzReviewed in Germany on July 30, 2025
5.0 out of 5 stars Radio Minni Verstärker
Verified PurchaseSchnelle Lieferung !
Und geht auch gut für den Preis 👍