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2 Channel Stereo Amplifier for Passive SpeakersFosiAudioDirect
Fosi Audio BT20A Bluetooth Stereo Amplifier, 2 Channel Home Audio Component Amplifiers for Passive Speakers, Mini Class D Amp Receiver 200W for Indoor, Outdoor, Garage, Ceiling, Bookshelf Speaker
Purchase options and add-ons
| Item dimensions L x W x H | 13.2 x 9 x 3.6 Centimetres |
| Manufacturer | Shenzhen Foresight Technology Co., Ltd. |
| Mounting type | Surface Mount |
| Brand | Fosi Audio |
| Number of channels | 2 |
| Output power | 200 Watts |
| Package type | bare |
| Material | Plastic |
About this item
- ENTRY-LEVEL POWER AMPLIFIER: Experience powerful sound with the BT20A Bluetooth amplifier, boasting an impressive 100Wx2 maximum output power. It can power multiple speaker cabinets, which can be used at home or in small venues
- EFFECTIVE, SIMPLE, AND NO FRILLS: The compact design allows it to be used in any space where passive speakers are required. It can be used in an office, a bedroom, a living room, a garage, or even on the patio
- EASY TO SET UP: The 2 Channel amplifier has a straightforward installation and a one-touch power switch for easy operation. The smooth bass and treble controls allow tuning to taste and the connected bookshelf speakers
- BLUETOOTH AND RCA INPUTS: The seamless Bluetooth connectivity allowing you to stream music directly from your phone without any dropouts or delays, delivering crystal-clear sound and impressive volume for your home audio setup
- ALL-BLACK DESIGN: This Class D amplifier features an integrated one-piece design that not only adds to its looks but also makes it more durable. With its stylish look, it fits wonderful on any shelf and complements most home decor
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This product has sustainability features recognized by trusted certifications.Carbon emissions from the lifecycle of this product were measured, reduced and offset.As certified by
The ClimatePartner certified product label confirms that a product meets the requirements for the five steps in climate action including calculating carbon footprints, setting reduction targets, implementing reductions, financing climate projects and communicating transparently to continuously reducing emissions.SVDBDZ
ZOOAUX PRO 3.5mm to RCA Aux Cable, Aux to RCA Headphone Male to Male Audio Adapter Nylon Braided 1/8 Audio Y Splitter Auxiliary Cord for Smartphones, MP3, Tablets, Speakers, HDTV- 4FT10% offLimited-time dealFREE Shipping by Âé¶¹ÇøGet it by Monday, Mar 23
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
Product information
Technical Details
| Manufacturer | Shenzhen Foresight Technology Co., Ltd. |
|---|---|
| Place of Business | 3rd Floor, Building 10, Aohua Industrial Zone, Gaofeng Community, Dalang Street, Longhua District, Shenzhen 518000 China |
| Part number | BT20A |
| Item Weight | 680 g |
| Product Dimensions | 13.21 x 8.99 x 3.61 cm; 680.39 g |
| Item model number | BT20A |
| Material | Plastic |
| Mounting Type | Surface Mount |
| Included components | User Manual |
| Batteries Required? | No |
| Length | 5.2 inches |
| Width | 3.54 inches |
| Height | 1.42 inches |
Additional Information
| ASIN | B0DP95N7T1 |
|---|---|
| Customer Reviews |
4.4 out of 5 stars |
| Âé¶¹Çø Rank |
|
| Date First Available | Nov. 29 2024 |
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Product details
- Product Dimensions : 13.21 x 8.99 x 3.61 cm; 680.39 g
- Date First Available : Nov. 29 2024
- Manufacturer : Shenzhen Foresight Technology Co., Ltd.
- Place of Business : 3rd Floor, Building 10, Aohua Industrial Zone, Gaofeng Community, Dalang Street, Longhua District, Shenzhen 518000 China
- ASIN : B0DP95N7T1
- Item model number : BT20A
- Country of origin : China
- Âé¶¹Çø Rank: #3,100 in Electronics (See Top 100 in Electronics)
- Customer Reviews:
Product Description
Simple yet Powerful Mini Amp
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.
- MAX Power Output: 100W x 2
- Terminating Impedance: 2 Ohm - 8 Ohm
- THD ¡Ü 0.04%, SNR ¡Ý 98dB
- Power Adapter: 24V/4.5A, DC Input Range: 12-24V
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With a Nice Consistent Resistance
Fine-tune your sound with the smooth bass and treble adjustment for optimal speaker performance.
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A No-Frills Amp
100 watt per channel power output can drive most home passive speakers to create astonishing sound.
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Bluetooth Amplifier for Speakers
Instant setup with phones, tablets, and almost any other Bluetooth-enabled devices.
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Crystal-Clear Hi-Fi Audio
Exceptional clarity at high volumes, with <0.04% distortion.
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Power the Pair of Indoor/ Outdoor Speakers
Paired with your audio device over Bluetooth or RCA cable, you will get a rich and clear sound.
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Advanced Circuitry Architecture
The Texas Instruments TPA3116D2 Chip presents music with rousing highs and deep lows.
More details about the BT20A amplifier for potential assistance:
- If you're seeking the upgraded version of the BT20A, please consider the BT20A Pro amplifier.
- The BT20A amplifier is designed for a 2.0-channel audio system and is not intended for a 4-channel system.
- Generally, it is not recommended to use a turntable with the BT20A amplifier unless your turntable is with a built-in phono preamp.
- In terms of accessories, a set of 24V/4.5A power cables and an instruction manual will be provided. Note: Remote control and extra cables are not included.
Comparison
BT20A
Add to Cart
| BT10A
Add to Cart
| BT20A PRO
Add to Cart
| BT30D
Add to Cart
| BT30D PRO
Add to Cart
| |
|---|---|---|---|---|---|
|
Customer Reviews
|
4.4 out of 5 stars 66
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4.4 out of 5 stars 12
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4.5 out of 5 stars 88
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4.3 out of 5 stars 45
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4.7 out of 5 stars 51
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Type
| Bluetooth 2.0 CH Amp | Bluetooth 2.0 CH Amp | Bluetooth 2.0 CH Amp | Bluetooth 2.1 CH Amp | Bluetooth 2.1 CH Amp |
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MAX Power Output
| 100W x 2 | 50W x 2 | 300W x 2 | 50W x 2+100W | 165°Â¡Á2+350°Â |
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Input
| Bluetooth + RCA | Bluetooth + 3.5mm AUX | Bluetooth + RCA | Bluetooth + RCA | Bluetooth + RCA |
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Output
| Passive Speakers | Passive Speakers | Passive Speakers+Pre-Out | Passive SPK+Active/Passive Sub | Passive/Active Speakers/Sub |
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Treble & Bass Control
| ✔ | ✔ | ✔ | ✔ | ✔ |
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THD
| ¡Ü 0.04% | ¡Ü 0.04% | ¡Ü 0.005% | ¡Ü 0.04% | ¡Ü 0.3% |
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SNR
| ¡Ý 98dB | ¡Ý 98dB | ¡Ý108»åµþ | ¡Ý 98dB | ¡Ý 108dB |
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Terminating Impedance
| 2-8 Ohm | 2-8 Ohm | 2-8 Ohm | 2-8 Ohm | 2-8 Ohm |
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Power Adapter
| 24V/4.5A | 19V/4.74A | 32V/5A | 24V/4.5A | 32V/5A |
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Work Voltage
| AC 110V - 240V | AC 110V - 240V | AC 110V - 240V | AC 110V - 240V | AC 110V - 240V |
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Customer reviews
Customers say
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Reviews with images
Fosi BT20A
Top reviews from Canada
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- Reviewed in Canada on March 9, 2026Verified PurchaseReasonably powerful, good sounding (very good in fact, better than expected), intuitive and easy bluetooth pairing (which automatically over-rides RCA inputs when paired).
I like this little amp, especially for the price. No frills, does what it needs to do, and gets out of the way.
- Reviewed in Canada on January 22, 2026Verified PurchaseOrdered one and when it came it wast working as it should, a seamless return process and reordered. The new one is 10/10 works as it should. Very happy!
- Reviewed in Canada on June 12, 2025Verified PurchaseI have speakers in the ceiling (3 pairs) over the kitchen, dining area, and formal dining room. I had wired it up when our house was being built. All the wiring ends up coming out of a wall-socket in the family room and I had them plugged in to an AM/FM/RCA-in amplifier...A little old but of decent quality.
We got tired of constantly searching for the appropriate adaptor cables depending on who's phone we were using so I ordered this little unit because of the bluetooth option.
I fired it up yesterday and wasn't expecting much because of the size and price. I SEAMLESSLY connected an iPhone and either my previous unit was terrible or this one is awesome but I can confirm that I've never had such excellent sound come out of those speakers.
I can't speak for longevity but at this price, I almost don¡¯t care. ? ? ?
- Reviewed in Canada on December 2, 2025Verified PurchaseI am pretty much an audiophile so was not expecting much. I am using this to connect to firestick via Bluetooth and two old Bose speakers in our bedroom. WOW I was very surprised at the sound quality. Even when cranking up the volume there was no distortion and amplifier remained cool to the touch. A few things to note than after powering off and powering up will not automatically connect to firestick which is a minor pain. The power adapter is larger than the unit itself which might be an issue if space is tight. But overall this purchase shows that you can get quality audio (assuming lasts for a few years) for little $$.
- Reviewed in Canada on December 7, 2025Verified PurchaseGood base overall pretty good performance
- Reviewed in Canada on December 1, 2025Verified PurchaseBought this for work and just used some speakers from my Sony sound system. The quality of sound is unmatched. The power is great. Could have more punch but it can fill a room without an issue. Will deff buy more.
- Reviewed in Canada on January 16, 2026Verified Purchasenot worth the money dead after a few months the return time frame ran out.....the little cheap ones are better...
- Reviewed in Canada on February 7, 2026Verified PurchaseThis little amp is impressive. Didn't expect it to perform like it has. Don't let the size fool you, it's a tiny powerhouse. I decided on this one model as a test for the brand overall. I will be purchasing more Fosi audio in the future for sure.
This little amp is impressive. Didn't expect it to perform like it has. Don't let the size fool you, it's a tiny powerhouse. I decided on this one model as a test for the brand overall. I will be purchasing more Fosi audio in the future for sure.
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Product Summary: Fosi Audio BT20A Bluetooth Stereo Amplifier, 2 Channel Home Audio Component Amplifiers for Passive Speakers, Mini Class D Amp Receiver 200W for Indoor, Outdoor, Garage, Ceiling, Bookshelf Speaker
From Fosi Audio
About this Item
- ENTRY-LEVEL POWER AMPLIFIER: Experience powerful sound with the BT20A Bluetooth amplifier, boasting an impressive 100Wx2 maximum output power. It can power multiple speaker cabinets, which can be used at home or in small venues
- EFFECTIVE, SIMPLE, AND NO FRILLS: The compact design allows it to be used in any space where passive speakers are required. It can be used in an office, a bedroom, a living room, a garage, or even on the patio
- EASY TO SET UP: The 2 Channel amplifier has a straightforward installation and a one-touch power switch for easy operation. The smooth bass and treble controls allow tuning to taste and the connected bookshelf speakers
- BLUETOOTH AND RCA INPUTS: The seamless Bluetooth connectivity allowing you to stream music directly from your phone without any dropouts or delays, delivering crystal-clear sound and impressive volume for your home audio setup
- ALL-BLACK DESIGN: This Class D amplifier features an integrated one-piece design that not only adds to its looks but also makes it more durable. With its stylish look, it fits wonderful on any shelf and complements most home decor
Product description
Newer Version Available
Fosi Audio BT20A Pro HiFi Amplifier, 300Wx2 Mini Amplifier with Bluetooth 5.0 & TPA3255 Amp chip, Replaceable Op-Amps, Class D Power Amplifier Stereo 2.0 Channel with Bass and Treble Adjustment, 4.5 out of 5 stars, 88 ratings
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