Radsone ES100: https://earstudio.store/products/es100
Fiio BTR5: https://www.fiio.com/btr5
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Qudelix 5k: https://www.qudelix.com/products/qude...

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00:00 - Intro
01:00 - Build Quality, Form Factor, Connectivity & Battery
09:44 - Amp & DAC Sections, Power
11:24 - Sound Quality
12:22 - Features & Functionality (reasons to buy)
20:46 - Rant About EQ
23:10 - Conclusion