Sony A55 DAP: Long term review | My thoughts | More than good enough (14/10/23)

The following is covered in the video:
Law of diminishing returns in audio
Blind A/B test would determine the veracity of "audiophile" claims of sound difference between DAPs
Sound
Screen quality/brightness required in different environments
Ergonomics/size
Physical layout of device/buttons
Software and UI/navigation
Boot up speed
SD Card and slot
Comparisons to other DAPs
Battery life
Codec/format compatibility
Gapless playback
Portability
Volume levels with IEMs and a headphone
Online privacy/google spyware on Android DAPs
Pros and cons
Noise floor/hiss

Equipment shown/used/referenced in the video:
Fiio FH3
Fiio JD7
Campfire Audio Dorado 2020
Sennheiser IE600
Sennheiser HD600
Thieaudio Monarch Mk II (sold due to fit issues)
Thieaudio Prestige Ltd (sold due to fit issues)
Hiby R5 Gen II
Hiby R6 Pro II