--- product_id: 157629410 title: "BT20A Pro 300W x2 TPA3255 Bluetooth 5.0 Home Audio Stereo 2 Channel Amplifier Receiver Mini Hi-Fi Class D Upgraded Integrated Amp for Speakers with Bass Treble Control" brand: "fosi audio" price: "¥48316" currency: JPY in_stock: true category: "Fosi Audio" url: https://www.desertcart.jp/products/157629410-bt20a-pro-300w-x2-tpa3255-bluetooth-5-0-home-audio store_origin: JP region: Japan --- # 300W x2 Power Output Bluetooth 5.0 with Memory Pairing SNR≥108dB & THD≤0.005% Audio Clarity BT20A Pro 300W x2 TPA3255 Bluetooth 5.0 Home Audio Stereo 2 Channel Amplifier Receiver Mini Hi-Fi Class D Upgraded Integrated Amp for Speakers with Bass Treble Control **Brand:** fosi audio **Price:** ¥48316 **Availability:** ✅ In Stock ## Summary > 🎶 Elevate your sound game with pro-level power and precision! ## Quick Answers - **What is this?** BT20A Pro 300W x2 TPA3255 Bluetooth 5.0 Home Audio Stereo 2 Channel Amplifier Receiver Mini Hi-Fi Class D Upgraded Integrated Amp for Speakers with Bass Treble Control by fosi audio - **How much does it cost?** ¥48316 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/157629410-bt20a-pro-300w-x2-tpa3255-bluetooth-5-0-home-audio) ## 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 - • **Tailor Your Tone:** Interchangeable Op-Amps let you customize your audio signature like a true audiophile. - • **Seamless Connectivity:** Bluetooth 5.0 with memory function ensures effortless pairing and uninterrupted streaming. - • **Plug & Play Confidence:** Includes everything you need plus a 24-month warranty and dedicated customer support. - • **Powerhouse Performance:** Dual 300W channels deliver room-filling, crystal-clear sound that commands attention. - • **Precision Sound Control:** Wide bass and treble adjustments let you craft the perfect vibe for every playlist. ## Overview The BT20A Pro is a compact, high-efficiency Class D amplifier featuring TI’s TPA3255 chip delivering 300W per channel. It offers advanced audio customization with replaceable Op-Amps, Bluetooth 5.0 connectivity with memory pairing, and precise bass/treble controls. Designed for audiophiles seeking powerful, clean sound with flexible tuning options, it comes complete with all necessary accessories and a 2-year warranty. ## Description Experience exceptional sound with this Bluetooth amplifier's 300W x2 power, customizable options, and interchangeable op-amps for a tailored listening experience. ## Features - TI TPA3255 Chip Amplifier with 300 Watts x 2 Power Output: Advanced feedback design and high-speed gate driver error correction for efficient and high-quality audio performance, with low idle losses of <2.5W. - Upgraded High-Efficiency: A significant upgrade from the BT20A amplifier with replaceable Op-Amps for customized. You can replace the two plug-in NE5532 Op-Amps with LME49720HA/MUSES02/OPA2604AP/OPA2134PA/LM4562/NJM4556AD Op-Amps to achieve a unique sound quality. With SNR≥108dB and THD≤0.005%. - Enhanced Bluetooth 5.0 Connectivity: The Bluetooth pair can be cleared by pressing and holding the volume control for five seconds. In addition, it has a memory Function for Easy Pairing and Alert Tone. - Customizable Sound with a Wide Range of Bass and Treble Controls: The BT20A Pro home audio amplifier offers a unique design for sound control. Enjoy original sound without effects by setting treble and bass effects to the middle point. - What you Get: BT20A Pro Power Amplifier x1, Bluetooth Antenna x1, 32V 5A Power Adapter x1, AC Cord x1, User Manual x1, our worry-free 24-month warranty, and friendly customer service. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07JVFY27T | | Best Sellers Rank | 1,088 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 2 in Hi-Fi Amplifiers | | Box Contents | Bluetooth Antenna x1, 32V 5A Power Supply x1 | | Brand Name | Fosi Audio | | Country of Origin | China | | Customer Reviews | 4.5 out of 5 stars 2,867 Reviews | | Item Weight | 567 Grams | | Manufacturer | Fosi Audio | | Manufacturer Part Number | BT20A Pro | | Model Number | BT20A PRO | | Number of Items | 1 | | Product Warranty | 2 years | | Unit Count | 1.0 count | ## Product Details - **Item dimensions L x W x H:** 14.2 x 10.7 x 0.4 centimetres - **Manufacturer:** Fosi Audio - **Maximum supply voltage:** 32 Volts (DC) - **Minimum supply voltage:** 32 Volts - **Voltage:** 32 Volts ## Images ![BT20A Pro 300W x2 TPA3255 Bluetooth 5.0 Home Audio Stereo 2 Channel Amplifier Receiver Mini Hi-Fi Class D Upgraded Integrated Amp for Speakers with Bass Treble Control - Image 1](https://m.media-amazon.com/images/I/61ne1lo34ML.jpg) ## Available Options This product comes in different **Colour Name** options. ## Questions & Answers **Q: Will you be making the bt20a pro available on amazon with the 48v power supply?** A: Hi, BT20A Pro is available with the 48v power supply. **Q: Is amp a similar quality to the tangent ampster btii?** A: Yes,or better,think this is the best sub £100 BY amplifier on the market,has input for cd or turntable and a sub woofer out,great item **Q: How do you switch between bluetooth and RCA inputs if there's no selector switch?** A: Push the volume knob, however this amp auto defaults to Bluetooth if you have the source bluetooth switched on. So to select RCA connection turn Bluetooth off on the source. **Q: Does it come with a power supply?** A: Yes, almost half of the size of the amp itself ## Frequently Bought Together - Fosi Audio BT20A Pro Bluetooth 5.0 Amplifier, 300W x2 Wireless Amp, TPA3255 2 Channel Mini Class D Integrated Home Audio Outdoor Stereo Receiver with Bass Treble Control for Passive Speakers - Banana Plugs with Dual Set Screws,Black and Red Aluminum Shell,6 Pairs - 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.jp/products/157629410-bt20a-pro-300w-x2-tpa3255-bluetooth-5-0-home-audio](https://www.desertcart.jp/products/157629410-bt20a-pro-300w-x2-tpa3255-bluetooth-5-0-home-audio) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-15*