Resource
Headfonics
Personal-audio review publication covering headphones, earphones, amplifiers, digital audio players, and DACs.
Verification sources
Related resources
Head-Fi
forum
Personal-audio community featuring headphone and earphone discussion, member reviews and CanJam event coverage.
Sources
eCoustics
publication
Online magazine covering hi-fi, home theater, headphones and music, with equipment reviews and product news.
Sources
Stereophile
publication
Audio publication site with reviews covering speakers, amplification, digital and analog sources, headphones, and recordings.
Sources
What Hi-Fi?
publication
UK technology publication with news and reviews covering hi-fi, home cinema, headphones, and related equipment.
Sources
Audio Precision
tool
Audio analyzer and testing company offering APx measurement hardware and software for analog, digital, headphone, microphone, and loudspeaker testing.
Sources
miniDSP
tool
Audio processing and measurement platform whose official site lists DSP processors, room-correction products, and headphone test fixtures.