--- product_id: 119048678 title: "BL20A" brand: "fosi audio" price: "$33.76" currency: USD in_stock: false url: https://www.desertcart.us/products/119048678-bl20a store_origin: US region: United States of America --- # Bluetooth 5.0 with 50ft range 200W max power output Multi-input: Bluetooth, RCA, AUX, U-Disk BL20A **Brand:** fosi audio **Price:** $33.76 **Availability:** ❌ Out of Stock ## Summary > 🎵 Elevate your sound game—compact power that commands attention! ## Quick Answers - **What is this?** BL20A by fosi audio - **How much does it cost?** $33.76 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/119048678-bl20a) ## Best For - fosi audio enthusiasts ## Why This Product - Trusted fosi audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Stylish:** Sleek aluminum alloy chassis fits perfectly in any modern living space without sacrificing power or style. - • **Powerhouse Performance:** 200W Class D amplifier delivers crystal-clear, room-filling sound for your home theater or stereo setup. - • **Smart Protection System:** Built-in safeguards against short circuits, thermal overload, and voltage issues keep your gear safe and sound. - • **Versatile Input Options:** Connect effortlessly via Bluetooth, RCA, 3.5mm AUX, or U-Disk to suit all your devices and playlists. - • **Seamless Wireless Connectivity:** Bluetooth 5.0 ensures lag-free streaming with an impressive 50ft range—cut the cords, not the quality. ## Overview The Fosi Audio BL20A is a mini Class D stereo amplifier delivering up to 200W of high-fidelity sound. Featuring Bluetooth 5.0 with a 50ft range and multiple input modes (Bluetooth, RCA, AUX, U-Disk), it seamlessly integrates with most home audio setups. Its compact aluminum design and advanced protection systems make it a reliable, stylish choice for audiophiles seeking powerful, versatile sound in a sleek package. ## Description Input: Bluetooth/3.5MM AUX/U-Disk Output: Passive Speaker Output + 3.5MM AUX Pre-out (Passive Speakers, Powered Speakers or subwoofer, Power Amplifier) SNR: ≥ 92dB, THD: ≤ 0.001% DC Input Range: DC 12-24V U-Disk Capacity: MAX 32GB Support Format: MP3/WMA/APE/ FLAC/WAV Max Power Output: 100watt ×2 ## Features - Fosi Audio BL20A 2.1 channel Bluetooth 5.0 power amplifier for home theater speaker systems can drive most home passive/powered/bookshelf/ceiling speakers. With 3.5MM AUX output, BL20A can connect to passive speakers and powered speakers simultaneously. Or you can connect to an preamp through the 3.5MM output to build a simple sound system - 3 Input Modes: BL20A support Bluetooth, RCA, U-Disks and 3.5MM AUX input with bass, treble, volume and remote control, compatible with most latest device. Utilizes Bluetooth 5.0 technology for seamless device linking and a 50ft connection range. A new generation class D amplifier give you the ultimate Hi-Fi music experience - BL20A Adopt 2PCS Texas Instruments TPA3116 poewr amplifier chips digital amplifier power stage for driving speakers up to 100W / 2 Ω in mono channel, MAX power output up to 200Watts. The TPA3116 are fully protected against faults with short-circuit protection and thermal protection as well as overvoltage, undervoltage, and DC protection. Faults are reported back to the processor to prevent devices from being damaged during overload conditions PCB to be used across different power levels - Mini and Elegant Design: Small and compact aluminum alloy body(Size: 5.2x3.54x1.42 inches), easy to set up, this audio component amplifier is a great choice to your home audio stereo systems - What you Get: BL20A Power Amplifier x1, Power Adapter x1, AC Cord x1, User Manual x1 ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B07PJVM79X | | Best Sellers Rank | #159,189 in Electronics (See Top 100 in Electronics) #976 in Audio Component Amplifiers | | Brand | Fosi Audio | | Customer Reviews | 4.4 4.4 out of 5 stars (762) 4.4 out of 5 stars | | Manufacturer | Fosi Audio | | Mfr Part Number | BL20A | | Model Number | BL20A | | Number Of Items | 1 | | Unit Count | 1 Count | ## Product Details - **Item dimensions L x W x H:** 4.72 x 3.54 x 1.18 inches - **Manufacturer:** Fosi Audio - **Maximum Supply Voltage:** 24 Volts (DC) - **Mounting Type:** Freestanding - **Voltage:** 24 Volts ## Images ![BL20A - Image 1](https://m.media-amazon.com/images/I/61bjU0qqbNL.jpg) ![BL20A - Image 2](https://m.media-amazon.com/images/I/61xGVpL85mL.jpg) ![BL20A - Image 3](https://m.media-amazon.com/images/I/81bO0VWASRL.jpg) ![BL20A - Image 4](https://m.media-amazon.com/images/I/619bwUZMvpL.jpg) ![BL20A - Image 5](https://m.media-amazon.com/images/I/71Ht870UFwL.jpg) ## Questions & Answers **Q: How can this amp deliver 200w (output power: 50w+50w+100w) if the power supply only delivers 100w? at the same time it says the psu is ’matched’?** A: I believe some of the specs for this amp are inaccurate and I'm not sure what the actual ratings are. Regardless, I have been running this amp for a year with speakers from a 540W Sony MHC-EC909IP https://www.amazon.com/Sony-MHCEC909iP-System-Discontinued-Manufacturer/dp/B003GZDB1Q after the main unit broke. This amp drives the speakers just as well as the Sony unit and I was happily surprised with its performance. Again, Im unsure of the actual specs, but I wanted to give you a reference of the amps actual capabilities. **Q: How can this amp deliver 200w (50w+50w+100w) if the power supply only delivers 100w?** A: With the power supply it comes with, it can't. Most people will be happy with 100w total watts, especially since it can be divided between the channels moment by moment. That's better than a 25x2+50W amp, since the sub on this could be driven with all the input power, if there was no audio needing the L & R. However, yes, if you want to get the full power out of this amp, and it has honest ratings, and won't distort or overheat at full output, you'd need to buy at least a 250W PSU (assuming 80% efficiency at full load). A 24V 10A supply isn't unusual, but will run about $40 if you don't get the absolute cheapest one out there. **Q: Can i use an a/b switch at the input to switch between a cd player,and,a turntable?** A: Yes you can !!!!! But you will need a pre amplifier for the turntable if it a mag. cartage !!!!! **Q: if I turn up the master volume does the sub volume increase with it, or do I need to adjust the bass volume to not be drowned out by speakers** A: The Master volume controls ALL the channels, including the subwoofer. The BASS VOL volune knob adjusts the subwoofer volume only, so you can set it as desired relative to the main L & R channels, along with the FREQ knob, which adjusts the subwoofer hi-frequency cutoff. Once you’ve got the proper balance set, then you use the Master volume to adjust the overall listening level. The TREBLE and BASS knobs adjust these frequencies for ALL channels, according to you preference. ## Frequently Bought Together - Fosi Audio BL20A 200W Bluetooth 5.0 Home Audio Stereo Amplifier Hi-Fi Mini Class D Integrated Amp with U-Disk/3.5MM AUX/RCA Input and Remote Control for Home Passive Theater Speaker with Power Supply - FosPower Banana Plugs 2 Pairs / 4 pcs, Closed Screw 24K Gold Plated Banana Speaker Plug Connectors for Speaker Wire, Wall Plate, Home Theater, Audio/Video Receiver, Amplifiers and Sound Systems - Amazon Basics Speaker Cable, Easy Assembly, 16-Gauge, Bronze, 100 ft --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/119048678-bl20a](https://www.desertcart.us/products/119048678-bl20a) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-10-17*