Fosi Audio BT20A Pro Mini Amp TPA3255 Review and Power Output Test

#AmpDyno #Amplifier #Bass Fosi Audio BT20A Pro Mini Amp Review UPDATE: See Power Supply Comparison https://youtu.be/wJeQO-E1U1g Shop Fosi Audio BT20A Pro: https://amzn.to/43g4JT6 EXCLUSIVE 20% off Discount Code: 20APROWAL20 Discount Valid April 10-30, 2023 Fosi Audio BT20A standard model: https://amzn.to/43lwTfp Fosi Audio 48V 5A Power Supply: (Coming Soon) 0-48V 10A Variable Voltage Power Supply: https://amzn.to/3mkJv5P AIYIMA A07 Amp with 32V adapter: https://amzn.to/3Xu0jEA AIYIMA 48V 5.2A Adapter: https://amzn.to/3H1CHSh Elac Bookshelf Speakers: https://amzn.to/3nVrhbJ Speaker Banana Plugs: https://amzn.to/3zLGrTv Anti-Static IC Puller: https://amzn.to/3miE8nE 3.5mm to RCA Adapter: https://amzn.to/4082DC9 Polk Audio PSW10 Powered Subwoofer: https://amzn.to/3nVXWOa Related Videos Update - Fosi Audio BT20A Pro Power Supply Tests: https://youtu.be/wJeQO-E1U1g Fosi Audio M0-3 Mini Amp: https://youtu.be/wrBPAP3nol0 Aiyima A07 Mini Amp (TPA3255) : https://youtu.be/kBim2j7Gm5o Douk Audio M1 Pro Mini Amp: https://youtu.be/WROm7jJbb2M Mini Amp Video Playlist: https://bit.ly/3IMdtbN Amp Dyno Modes Explained: https://youtu.be/Q0m6NsB-HHc More Power Output than Power Supply?: https://youtu.be/c7QELbpKMuI?t=490 VIDEO INDEX 0:00 Intro 0:36 Unboxing 1:30 Features 3:08 Specifications 3:43 Amp Dyno Tests 32V 5:22 Amp Dyno Tests 48V 7:18 More Power Out Than In? 7:40 Pre-Amp Output Tests 8:55 Bluetooth Connection 9:22 Sound Tests - Song Demo's 10:46 What's Inside? 12:36 Pros and Cons 13:39 Final Thoughts 14:20 EXTRA Test ➡️ Support OSS / Williston Audio Labs for early access to videos: http://www.patreon.com/OldSchoolStereo One Time "Tip" for Video Support: https://paypal.me/BigDWiz 📒 Show Notes, Video Gear List and Resources 📒 Make sure you are subscribed to my channel so you'll receive notifications when I upload the next exciting video! Thanks for your support and remember to keep it Old School! Subscribe to Williston Audio Labs / OldSchoolStereo Here: https://www.youtube.com/BigDWiz ⚡ Williston Audio Labs on Social Media: http://www.oldschoolstereo.com http://www.willistonaudio.com https://instagram.com/oldschoolstereo https://www.facebook.com/oldschoolstereo VIDEO AND AUDIO GEAR Camera - iPhone 13pro 1TB - https://amzn.to/3nCjGvc RODE Wireless Go II Microphones: https://amzn.to/3Q6NVHl Shure MV7 Microphone: https://amzn.to/3A4OICK Zoom H4n Audio Recorder: https://amzn.to/3BXjVsS 960 LED Panel: https://amzn.to/2Sxoq3S This VIDEO was EDITED with LumaFusion on an iPad Pro 12.9: iPad: https://amzn.to/2Ancr1W Software: https://goo.gl/6yvWss TEST BENCH EQUIPMENT SMD / D'Amore Engineering Amp Dyno: https://goo.gl/sJTcf7 XS Power D1400 Batteries - https://amzn.to/2BPFCKW XS Power PSC60 Charger - https://amzn.to/2CHGcfs Fluke 1000A AC/DC Clamp Meter: https://amzn.to/2Rw5WDA Handheld Dyno: http://amzn.to/2u2EgKV My Favorite Screwdriver Kit: http://amzn.to/2x0VzcE DISCLAIMER: This video and description contains affiliate links, which means that if you purchase from one of the product links, I may receive a small commission. As an Amazon Associate I earn from qualifying purchases