Speakers review
HEDD Type 05 MK2
A 5-inch active monitor that reaches useful 40 Hz in-room and pairs a handmade AMT tweeter with a DSP toolkit thorough enough to tune it to the room from the listening chair.
Independent audio publication
Engineering first. Listening informed.
Audio reviews, measurements, news, and technical analysis focused on products that deliver meaningful engineering and listening performance.
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Latest reviews
Headphones review
HEDD Audio HEDDphone TWO GT
A full-range AMT flagship whose midrange and treble need no correction at all, bought at the cost of demanding amplification, 550g on the head, and a soundstage that is the one clear limit.
Amplifiers review
FiiO EA13
A pure Class A push-pull EL34 amplifier whose tube character is real and correctly shaped — elevated second harmonic, odd-order harmonics left alone — bought at the cost of 260W at the wall, significant heat, and a headphone output that should not be relied on.
Amplifiers review
Aiyima A20 Mono
A true dual-mono TPA3255 power amplifier whose PFFB implementation is correct and demonstrable in-room, with 2.1 integration and a 12V trigger that are properly thought through rather than tokenistic.
Clearly sourced
Latest news
Community support · Community
Help Capra Audio Rebuild After West Virginia Flooding
Brian Hayden and his family are safe, but flooding damaged their home and much of the equipment and inventory behind Capra Audio.
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On Magic Beans "True Target": Dirac Live 2-Pass Procedure.
Source: Archimago Why it is interesting: * Focuses on the “True Target” app by Magic Beans Audio. * Specifically addresses the Dirac Live 2-Pass pro
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Dirac Live ART room-correction software for PC and Mac Associated Equipment
Source: Stereophile Why it is interesting: * Provides room-correction software specifically for PC and Mac platforms. * The sy
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Dirac Live ART room-correction software for PC and Mac
Source: Stereophile Why it is interesting: * Software is designed for both PC and Mac platforms. * Functions by using digital filters to adjust loudspe
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AudioQuest releases sixth iteration of its DragonFly USB-connected DAC/headphone amplifier
Source: Stereophile Why it is interesting: * The DragonFly is now in its sixth generation of hardware iteration. *
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FiiO comes for WiiM with the €269 AIR AMP
Source: Darko.Audio Why it is interesting: * Integration of network playback, D/A conversion, and Class D amplification in a single unit. * Compact physical dimension
Understand the numbers
Technical articles
Technical analysis
A Smooth Slope Is Not One Universal Target
A smooth downward trend may be a useful reference across transducer types, but the correct slope depends on how each device couples to listeners, rooms, and reflections.
Technical explainer
When Distortion Becomes a Listening Question
Distortion audibility depends on level, frequency, programme material, listener, and the kind of distortion—not a single percentage.
Editorial analysis
What Measurements Are For
Measurements are powerful evidence, but their useful role is decision-making—not replacing listening, context, or judgement.
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Review categories
Equipment, software, and measurement tools—organised without the colourful tile wall.