Home / Headphones / 64 Audio U4s
Specifications
Score by configuration
Max score assumes optimal full audio chain.
Analysis
The 64 Audio U4s is a high end iem with 15Ω impedance and 104dB sensitivity. At 15Ω, these headphones drive well from most phones and computers without needing an external amplifier.
Your audio source matters more than most people think. Spotify High Quality is fine for casual listening, but with FLAC files or lossless services like Apple Music or TIDAL you'll hear a clear improvement — especially with high end headphones like these.
Own the U4s?
Find out if your DAC, amp or source is limiting your sound.
Compare U4s vs
Similar headphones