Fosi Audio BT20A – 2 Channel Bluetooth 5.0 Stereo Class D Amplifier for Home Audio System


The Fosi Audio team is dedicated to bringing you the highest-quality listening experience.

Made In: China

Made By Fosi Audio Store SKU: BT20A Categories: , , Tags: , More From:

Fosi Audio BT20A – 2 Channel Bluetooth 5.0 Stereo Class D Amplifier for Home Audio System

Welcome to the Fosi Audio family, and congratulations on your purchase of the Fosi Audio products. The Fosi Audio team is dedicated to bringing you the highest-quality listening experience. The Fosi Audio converters were designed with attention to detail and operational simplicity as all other Fosi Audio products. Our goal is to get you to your music as simply as possible without all the “gadget tinkering” many other products require.

  • 100W Max X 2(4 ohms, 20 Hz – 20 kHz, 0.04% THD), comes with a 24V power supply, can drive 280watts(8 ohms), 320watts(4 ohms) speakers (For passive speakers only, not the powered speakers.)
  • Advanced circuitry design, built-in speakers protection circuit, best for bookshelf/computer/desktop/speakers in your home;
  • Home integrated digital amplifier, 18-month warranty; you can return the item if you have any problems;
  • Small, simple, compact design but practical and powerful, Hi-Fi Bluetooth amplifier exclusively designed for the customers who pursue HiFi sound;
  • Bluetooth 5.0 core, up to 33ft connection range guarantees low signal delay. No pop, no audible noise when Bluetooth connection is established.

Product Advantages

  1. Adopt QCC3003 Bluetooth 5.0 chip that improves the sound quality.
  2. Extraordinary Clarity Hi-Fi Sound. Instant setup with phones, tablets, and almost any other Bluetooth-enabled device. CSR64215 chip ensures your devices maintain a robust and stable connection up to 50 Ft away for skip-free music.
  3. Advanced Audio ArchitectureThe High-Performance Texas Instruments TPA3116D2 Chip presents rousing highs and deep lows. Less than 0.04% harmonic distortion at high volumes results in remarkable clarity.
  4. Irresistible Finish
  5. Fosi Audio BT20A’s curved edges and sleek controls accentuate its unibody design. With advantageous features and thoughtfully designed premium enclosures.
  6. Drive passive speakers
  7. Perfect if you prefer separate passive speakers and preamps for your audio setup. 100 watt per channel power output can drive most home passive speakers to create great Sound. Easy to fit your audio system with Bluetooth and RCA input
  8. Upgraded DC Outlet.No sparks flying when the power supply plug-in.
  9. 24V/4.5A Power Supply
  10. Unlike other amplifiers, they come with a cheap 12V power supply. As a result, Fosi Audio BT20A, equipped with an energy-efficient, stable power supply, which got authoritative certification by many security tests, can get an astonishing sound.


  • Power supply range: 12v-25v;
  • THD: ≤ 0.5%.
  • Frequency Range: 20Hz – 20kHz (±1 dB);
  • SNR: ≥ 98dB;
  • Input sensitivity: ≤ 280mV;
  • Bluetooth transmission distance: 28ft;
  • Terminating impedance: 2Ohm – 8Ohm;
  • Output power: 100W + 100W;
  • Input mode: Bluetooth and Analog;
  • Bluetooth Name: Fosi Audio
  • Bluetooth chip: Qualcomm QCC3003
  • Power supply: 24V 4.5A
  • Supplied Accessories: Amplifier, Power supply, AC power cord, Manual.


There are no reviews yet.

Be the first to review “Fosi Audio BT20A – 2 Channel Bluetooth 5.0 Stereo Class D Amplifier for Home Audio System”

Product Manuals

If applicable, the Product Documentation, Reference Materials, CAD design(s),.STEP file(s) and/or other drawing files, Manuals, and Tutorials will be available for download upon purchase. The order confirmation email will include a downloadable link to the product file(s), which can also be downloaded from the My Account section if needed.

Fosi Audio is a brand specializing in the design, manufacture, and sale of hi-fi products. With experience in researching and developing countless HiFi home audio amplifiers of different types.

Fosi Audio places great importance on users’ needs and is committed to making great-sounding products that make people want to listen to music every day, to supply users with the best audio products and the best prices. We pursue your perfect music journey and become your HiFi home audio amplifier expert.

Enjoy Hi-Fi music with Fosi Audio audio products NOW!

Shipping Policy

Worldwide Shipping

Our Warehouse in Worldwide:

China(Shenzhen), shipping to the worldwide via 4px. if you choose free standard shipping, it needs about 15-25 days for delivery. if you pay extra shipping for fast shipping, we will send it via express shipping for you, which only needs about 7-15 days.

United Stated, shipping to United State via USPS/UPS, which needs about 3-5 days for delivery.

Canada, shipping to Canada via Canadian Post, which needs about 3-5 days for delivery

United Kingdom, shipping to United Kingdom via Royal Mail which needs about 3-5 days for delivery.

Italy, shipping to EU Countries via suitable shipping method, which needs about 3-7 days for delivery.

Spain, shipping to EU Countries via correos to Spain, to other EU Countries via Spain GLS, which needs about 3-5 days for delivery.

Russian Federation, shipping to RU via IML, which needs about 3-5 days for delivery.

Australia, shipping to Australia via Autralian Post, which needs about 3-7 days for delivery.

All the items you can buy is in stock in Chinese warehouse, but not all the items are in stock in other warehouse, if you need it urgently shipping from the other warehouse, please confirm it from us first!


Our products are not charged with tax and VAT and we don’t cover with tax amount. We usually help customers to declare the lower price to forbid the tax charged or lower the tax value. And most shipment  is not charged with import tax  By shipped from US, EU, RU warehouse to the correspond countries, there won’t have any tax charged. For some countries that have complicated custom process like South America, we recommend you order on AliExpress or find a receiver in North America to help you transmit the package.

Note: Faraway address may last longer delivery and add cost.

Return Policy

Fosi Audio always aims for the highest customer satisfaction. If you are unsatisfied with your products or the products turn out to be defective then you can claim a return or refund.

We afford the return shipping fee with following status:

  1. Defected parts
  2. Damaged devices
  3. Incorrect item shipped

*The 14 days period is calculated from the date you received the items.

*If you claim a return that exceed 14 days free return period or without any defected or damaged devices, you need to afford the return shipping fee yourselves.

*Please note: Some returns we may charge the shipping fee from you. Like change your mind or ordered wrong items when shipping is proceeded, then we will charge the shipping fee from your payments.

Return and refund process

  1. Send your order number and reasons for return and refund via mail to
  2. We will check your case and reply in 2 work days.
  3. If return acceptable then we will distribute the nearest after sale address to you to ship the return.
  4. After you ship the return items, then send the info below to us:
  • tracking number
  • shipping receipt (If shipping fee refund needed)
  • PayPal account (If shipping fee refund needed)
  1. After confirm your package is shipped, we will arrange the refund or replacement as soon as possible.

Shipping costs

Region / Country State Postcode Cost
United States (US) Any Any Free shipping
Any Any Any Free shipping

Upon submitting your question, your email will include the product link automatically.

There are no questions yet. Be the first to ask a question about this product.

Send me a notification for each new answer.

Start Selling on Oz Robotics

Sell Worldwide with Oz Robotics. Find new buyers in the United States or Go Global. The Simplest Way to Sell your innovation worldwide. Reach out to millions of new customers to increase your sales through paid advertising. Sell your Hardware, Software, and Subscription based Apps. See Details

Become an Affiliate and Earn Extra Income!

You’re already sharing so many things online without making any money! So why not share our products and earn an extra income when visitors buy. Details