--- product_id: 139537600 title: "DAMGOO Bluetooth Amplifier Board,50w+50w 2 Channel Audio Amplifier Board Suitable for retrofit Speakers Bluetooth Speakers,Easy Installation and Password Free Connect to Phone with Protective Shell" brand: "owaykey" price: "23232CFA" currency: XOF in_stock: true reviews_count: 12 category: "Owaykey" url: https://www.desertcart.sn/products/139537600-damgoo-bluetooth-amplifier-board-50w-50w-2-channel-audio-amplifier store_origin: SN region: Senegal --- # 50W+50W stereo power 4.5-24V wide voltage input 5 tactile physical controls DAMGOO Bluetooth Amplifier Board,50w+50w 2 Channel Audio Amplifier Board Suitable for retrofit Speakers Bluetooth Speakers,Easy Installation and Password Free Connect to Phone with Protective Shell **Brand:** owaykey **Price:** 23232CFA **Availability:** ✅ In Stock ## Summary > 🎵 Elevate your sound game with wireless power and pro control! ## Quick Answers - **What is this?** DAMGOO Bluetooth Amplifier Board,50w+50w 2 Channel Audio Amplifier Board Suitable for retrofit Speakers Bluetooth Speakers,Easy Installation and Password Free Connect to Phone with Protective Shell by owaykey - **How much does it cost?** 23232CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/139537600-damgoo-bluetooth-amplifier-board-50w-50w-2-channel-audio-amplifier) ## Best For - owaykey enthusiasts ## Why This Product - Trusted owaykey brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Powerful Stereo Output:** Experience booming 100W total output for rich, room-filling sound. - • **Flexible Power Compatibility:** Supports both DC jack and terminal block inputs for versatile setup options. - • **User-Friendly Physical Controls:** Direct tactile buttons for play, pause, track navigation, and volume—no app needed. - • **Seamless Bluetooth & AUX Switching:** Effortlessly toggle between wireless and wired audio with intuitive buttons. - • **Built-in Reverse Polarity Protection:** Safeguard your investment with smart wiring error prevention. ## Overview The DAMGOO Bluetooth Audio Amplifier Board ZK-502B delivers crisp, powerful 50W+50W stereo sound using the advanced TPA3116 chip. It supports Bluetooth and AUX inputs with easy physical button switching, runs on a wide 4.5-24V power range via DC jack or terminal blocks, and includes reverse polarity protection. Compact and lightweight, it’s perfect for upgrading speakers or DIY audio projects with reliable, high-quality amplification. ## Description Product description Let our old speakers get cooler We have a lot of speakers with very good sound in our homes, and we rarely use them because there are no Bluetooth receiver modules. Now let's convert the ordinary speakers into cool and stylish Bluetooth speakers. More importantly, this is your own modified speaker, it is also unique. This embodies your cleverness and great hands-on ability, which has different meanings. Finally, remember to share your achievements and happiness with you! DAMGOO Bluetooth Amplifier Board Product Parameter Operating Voltage: DC 4.5-27V Output Power: 50W*2 Signal-Noise Ratio: 102dB Pa ckage Includes 1 X 50W*2 Amplifier Board 2 X Transparent Acrylic Sheets 16 X Screws 1 X paper Box Review: Very Satisfied - Update 9/12/2022 The original unit purchased 8/5/2020 still works great. No problems at all. It works so well I bought a second unit this summer for our summer place. It also works great. Original review: It does everything it says. The sound is crystal clear and way loud enough to hear outside on our deck with two Yamaha 8 Ohm speakers on a busy street. I connect to the unit via blue tooth from my phone. So far, it's connected each time since the initial pairing without a problem. I do power the unit down when not in use. When powered up, it beeps first to says it's up, then a second time when it makes the blue tooth connection. I have not attempted to push the sound up as high as it can go as I'm sure my neighbors would not appreciate it. :) I have recommended this to others. I can't say anything about quality or longevity as I've only had it installed for a few weeks now. Review: Attached it to a Fender Frontman 15R to replace the board that went bad in it. - It works perfect as a replacement for my amp to my Fender Frontman 15r that died a ways back. I put a 8" Celestion speaker in it last week and it sounds great. I am going to buy a second speacker and build a box the same sixe as the fender box and run speaker cable across to it and power both off of the amp since I am only using half of them. If I had the money to spend I would be building all kinds of audio projects with these. I love this little but powerful amp that is perfect to double as a Bluetooth for my computer and amp for my guitar. Vollume is a little difficult but not too bad. For the money this thing is awesome. ## Features - 【High-Performance TPA3116 Chip】The XY-502B amplifier utilizes the advanced TPA3116 chip, delivering vibrant 2.0 stereo sound with wide voltage input support (DC 4.5-24V) and a powerful output of 50W+50W for rich audio performance. - 【Dual Output Modes & Easy Switching】Supports both Bluetooth and AUX input modes, allowing seamless switching via physical buttons to connect effortlessly with various devices. - 【Flexible Power Options】Features two power connection methods: a 5.5*2.1mm DC jack and terminal blocks, compatible with most laptop power adapters for convenient setup. - 【Reverse Connection Protection】Equipped with reverse polarity protection to safeguard your power input and prevent damage from incorrect wiring. - 【Intuitive Physical Control】Five tactile buttons provide direct control for play/pause (long press to switch input mode), previous/next track, and volume adjustment, ensuring user-friendly operation. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07SHRM5H8 | | Best Sellers Rank | #72,925 in Electronics ( See Top 100 in Electronics ) #460 in Audio Component Amplifiers | | Brand Name | OWAYKEY | | Customer Reviews | 4.6 out of 5 stars 356 Reviews | | Item Dimensions | 3.43 x 2.09 x 1.14 inches | | Item Weight | 87 Grams | | Item dimensions L x W x H | 3.43 x 2.09 x 1.14 inches | | Manufacturer | DAMGOO | | Material Type | PCB | | Maximum Supply Voltage | 24 Volts (DC) | | Minimum Supply Voltage | 4.5 Volts (DC) | | Model | ZK-502B | | Mounting Type | Surface Mount | | Number of Channels | 2 | | Output Power | 100 Watts | | Package Type Name | box | | Part Number | ZK-502B | | Supply Current | 5 Amps | | Voltage | 24 Volts (DC) | ## Product Details - **Item dimensions L x W x H:** 3.43 x 2.09 x 1.14 inches - **Manufacturer:** DAMGOO - **Maximum Supply Voltage:** 24 Volts (DC) - **Minimum Supply Voltage:** 4.5 Volts (DC) - **Voltage:** 24 Volts (DC) ## Images ![DAMGOO Bluetooth Amplifier Board,50w+50w 2 Channel Audio Amplifier Board Suitable for retrofit Speakers Bluetooth Speakers,Easy Installation and Password Free Connect to Phone with Protective Shell - Image 1](https://m.media-amazon.com/images/I/71gwdtlNUOL.jpg) ![DAMGOO Bluetooth Amplifier Board,50w+50w 2 Channel Audio Amplifier Board Suitable for retrofit Speakers Bluetooth Speakers,Easy Installation and Password Free Connect to Phone with Protective Shell - Image 2](https://m.media-amazon.com/images/I/71JlrAUExfL.jpg) ![DAMGOO Bluetooth Amplifier Board,50w+50w 2 Channel Audio Amplifier Board Suitable for retrofit Speakers Bluetooth Speakers,Easy Installation and Password Free Connect to Phone with Protective Shell - Image 3](https://m.media-amazon.com/images/I/61PZcWb4vCL.jpg) ![DAMGOO Bluetooth Amplifier Board,50w+50w 2 Channel Audio Amplifier Board Suitable for retrofit Speakers Bluetooth Speakers,Easy Installation and Password Free Connect to Phone with Protective Shell - Image 4](https://m.media-amazon.com/images/I/71S4A3vqijL.jpg) ![DAMGOO Bluetooth Amplifier Board,50w+50w 2 Channel Audio Amplifier Board Suitable for retrofit Speakers Bluetooth Speakers,Easy Installation and Password Free Connect to Phone with Protective Shell - Image 5](https://m.media-amazon.com/images/I/71Kuphrc1ML.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very Satisfied *by S***Y on August 28, 2020* Update 9/12/2022 The original unit purchased 8/5/2020 still works great. No problems at all. It works so well I bought a second unit this summer for our summer place. It also works great. Original review: It does everything it says. The sound is crystal clear and way loud enough to hear outside on our deck with two Yamaha 8 Ohm speakers on a busy street. I connect to the unit via blue tooth from my phone. So far, it's connected each time since the initial pairing without a problem. I do power the unit down when not in use. When powered up, it beeps first to says it's up, then a second time when it makes the blue tooth connection. I have not attempted to push the sound up as high as it can go as I'm sure my neighbors would not appreciate it. :) I have recommended this to others. I can't say anything about quality or longevity as I've only had it installed for a few weeks now. ### ⭐⭐⭐⭐⭐ Attached it to a Fender Frontman 15R to replace the board that went bad in it. *by B***R on April 18, 2020* It works perfect as a replacement for my amp to my Fender Frontman 15r that died a ways back. I put a 8" Celestion speaker in it last week and it sounds great. I am going to buy a second speacker and build a box the same sixe as the fender box and run speaker cable across to it and power both off of the amp since I am only using half of them. If I had the money to spend I would be building all kinds of audio projects with these. I love this little but powerful amp that is perfect to double as a Bluetooth for my computer and amp for my guitar. Vollume is a little difficult but not too bad. For the money this thing is awesome. ### ⭐⭐⭐⭐⭐ Incredible sound! buy it ! Love it! *by S***S on May 22, 2023* This little board is bad ask.lol. Worth every penny ..the power requirements are versatile...5-24vdc. I have powered it up all day with a 20 cordless tool battery. It has yet to use full charge in an 8 hour day. It runs two 8" And two 3" speakers in a four foot custom box and the sound is incredible..I was very surprised at the clarity and range ..excellent bass excellent mids... excellent highs. I have intentions of setting up another board with a amp board and crossovers to drive a couple 12" and horns for an old fender system the Bluetooth has a decent range at about 30' solid and connects easily. I promise you won't be disappointed with this board. Easy to install in any application..the stand alone power is more than adequate for most applications ..I often turnine down as it's loud enough to disturb the neighbors.. ## Frequently Bought Together - DAMGOO Bluetooth Amplifier Board,50w+50w 2 Channel Audio Amplifier Board Suitable for retrofit Speakers Bluetooth Speakers,Easy Installation and Password Free Connect to Phone with Protective Shell - TalentCell Rechargeable 12V 6000mAh/5V 12000mAh DC Output Lithium ion Battery Pack for LED Strip/CCTV Camera/Telescope/Modem and More, Portable Li-ion Power Bank with 12.6V Charger, Black - TalentCell 12V Power Bank, Rechargeable 12V 3000mAh DC Output Lithium ion Battery Pack with Charger for LED Strip/Light/Panel/Amplifier and CCTV Camera, Compatible with Spectra Pump/Telescope --- ## 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.sn/products/139537600-damgoo-bluetooth-amplifier-board-50w-50w-2-channel-audio-amplifier](https://www.desertcart.sn/products/139537600-damgoo-bluetooth-amplifier-board-50w-50w-2-channel-audio-amplifier) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-05-22*