Design, DSPs and the debunking of traditional hi-fi

John Watkinson writes: Today’s loudspeakers are nowhere near as good as they could be, due in no small measure to the presence of “traditional” audiophile products. In the future, loudspeakers will increasingly communicate via digital wireless links and will contain digital processing. Indeed, the link between IT and loudspeakers is destined to grow.But no progress […]

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Valve microphonics

J. Evans writes: The construction of a valve is not a completely rigid structure. Any relative movement of the various electrodes not only affect sinter-electrode capacitances but also variations in current and mutualconductance. Such relative movements can be caused by vibration, such as sudden knocks or even ambient sounds. Mullard presented the results of an […]

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Sonic Wonderland by Trevor Cox – review

CASPER HENDERSON: Sand dunes hum and oceans rumble in this infectiously enthusiastic study of sound and hearing “I am hearing all the secret whisperings of the world!” says the Big Friendly Giant, whose ears are as large as those of an elephant, to the young heroine Sophie in Roald Dahl’s story. “I is hearing the […]

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Sticky situation: Magnetic audiotape’s potentially catastrophic degradation in storage

From the archives University of South Carolina: Many of the more than 46 million sound recordings archived throughout the US carry the risk of being destroyed during an attempt to digitize them, because magnetic audiotape can deteriorate over time. A team of researchers is developing a means to readily assess the structural condition of magnetic […]

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Buying stereos and avoiding really dumb decisions #5 – for £16 or less

Hopefully: 1.  You’ll agree that it’s essential that your amplifier or amplifiers being auditioned should be as close to tonally consistent across the spl (volume) band as possible i.e. no bass, or mid or treble emphasis (or dropout) as the volume is changed. 2.  That the only fair comparison between any two components (amps in […]

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A glimpse into the dark side of hi-fi forums / fora #01

Guest contributor Michael Vronsky writes: This is the first of an occasional series shining a light on some of the more unpalatable facets of some (predominantly, but not exclusively) UK-based hi-fi forums / fora. Both covert and overt homophobia, obscene language, anti-semitism ridicule of opinions, bullying, fanatical brand-loyalty, brand denigration and ridicule and more. Fortunately […]

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In defence of the viola

The viola was the instrument of choice for Mozart, Haydn, Bach, Dvorák and Beethoven; Jimi Hendrix and John Cale both played it; violinists turn to it to improve technique. So why is the viola the butt of jokes? Tabea Zimmermann defends her instrument Please click HERE to continue reading

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Amperage alchemy

Paul McGowan writes ….. We’ve briefly discussed getting the digital audio stream into the DAC and then decoding those bits back into a form of analog that gets us a lot closer to being able to play it on our systems. At the output of the DAC chip we have a series of current steps […]

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” … if you have to accept distortion products, might as well make them pleasing.”

Paul McGowan writes ….. Every device type we might choose to design an output stage or an amplifier of any kind has inherent distortion products.  These distortions are different in a current amplifying device (like a bipolar transistor) than they are in a voltage amplifying device (like a FET or tube). The differences are in […]

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SITE STATS: 01/02/18 > 22/07/18 as of 15:20 GMT

Average unique visitors per day 629 (202 days) Average pages opened per day 8,623 @ 202 days. (Total to date 1,741,843) Average pages opened per visit per day 7.19 Data courtesy of AW Stats – Open Source Log File Analyser for advanced statistics ‘AWStats parses and analyzes server log files, producing HTML reports. Data is […]

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How to get the midbass right?

Paul McGowan …… AGB’s latest column has been uploaded and for those of you interested to see what the Audio Hitman has to say about EQ’ing your system and frequency response in general, go here to read the article.  For the faint of heart, I recommend abstaining. As I worked through the setup of the […]

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LOUDSPEAKER MEASUREMENTS: Axiom, B&W, Dahlquist, Focal, JBL, Magico, Morel, PSB and many more

Written in 2009 They write ….. With the cooperation of Canada’s National Research Council (NRC), in the year 2000 the SoundStage! Network began measuring and publishing objective measurements of loudspeaker products — a first for online publications. The NRC’s legacy of producing accurate loudspeaker measurements goes back decades. Literally thousands of speakers have been measured […]

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JULIAN BREAM: The Gramophone interview

  We reprint this revealing interview with Julian Bream from January 2007… Sixty years ago, the classical guitar was little more than a musical curiosity in Britain, despite the work of Segovia in Europe – a small-voiced, exotic instrument that wasn’t to be taken seriously. But then a determined Londoner changed everything. Julian Bream’s single-handed […]

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