Resource
Z Reviews
YouTube channel with product reviews and instructional videos, mostly covering home theatre and budget audiophile gear such as headphones, speakers, DACs, amplifiers and music players.
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Audio Precision
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Audio Precision supplies APx audio analyzers and measurement software for engineering and production testing. Its electroacoustic options cover driver characterization, loudspeaker response, impedance and manufacturing faults, making it an equipment-testing resource rather than a consumer listening-room calibration app.
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AutoEq
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Free web tool that generates headphone equalisation settings: pick your headphones and equaliser app, or import a CSV of measurements, and it produces optimal EQ parameters, with a live demo for comparison.
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Personal-audio publication established in 2011, focused on subjective reviews of headphones, IEMs, amplifiers and digital sources. Its stated method combines listening, real-world use and competing-product comparisons, with coverage ranging from entry-level equipment to high-end portable and desktop systems.
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Personal-audio publication with reviews and buyer's guides for headphones, IEMs, earbuds, DACs, amplifiers and digital audio players, plus features drawing on surveys of its audiophile community.
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Hi-Fi News
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Hi-Fi News & Record Review has published in-depth reviews of audio equipment since June 1956, two years before commercial stereo, and describes itself as the world's longest-running hi-fi magazine. It covers reviews, news, vintage features, awards and its own listening room.