iFi Go Blu vs Fiio BTR5 vs Qudelix 5K vs Radsone ES100 - One of these blew my mind

Radsone ES100: https://earstudio.store/products/es100
Fiio BTR5: https://www.fiio.com/btr5
iFi Go Blu: https://www.headphones.com/products/ifi-audio-go-blu-portable-bluetooth-dac-amp
Qudelix 5k: https://www.qudelix.com/products/qudelix-5k-dac-amp?variant=32666237206587

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How to read frequency response:
https://www.youtube.com/watch?v=nR2AhYqFI_8
Become an expert on headphones: https://www.headphones.com/pages/research
Learn about headphone measurements and frequency response: https://www.headphones.com/pages/measurements-and-frequency-response
How frequency response impacts sound signature: https://www.headphones.com/pages/how-frequency-response-impacts-sound-signature
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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

Видео iFi Go Blu vs Fiio BTR5 vs Qudelix 5K vs Radsone ES100 - One of these blew my mind канала The HEADPHONE Show