Richard Lee’s Ultra-Low Noise MC Head Amp

This design was a development of Marshall Leach’s MC head-amp from the 1970’s and to my knowledge, Richard Lee’s implementation presented here has not been bested in terms of noise – about 280pV/rt Hz in a well implemented exemplar. Importantly, it requires only about 12mA current in the +-15V rail powered version, and about a […]

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The Tale of Two Recordings

I thought I’d share my thoughts with you on the sound of two LP’s I recently acquired.   Many of you will have heard of the term ‘sound wars’ which has been coined to describe the relentless increase in the use of  dynamic range compression in modern recordings, a development it could be argued from the […]

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Disc Recording Equalization Demystified by Gary A. Gallo

Pictured: A Neumann Cutting Lathe used to make the record master. Picture courtesy of Bakery Mastering This is one of the best non-mathematical introductions to the RIAA disc recording playback chain written. Gallo worked at the Crane School of Music in New York for 30 years as an audio engineer, where he also received a […]

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Tom D Kite Busts Some Audio Myths!

Ever wondered how we got to ‘feedback is bad’, ‘ . . . sampling destroys the music’  or  ‘ . . .  analog is 40 bits resolution . . .’  ,  ‘we need damping factors of 1000’  and   ‘ . . . only vinyl sounds good’ ?  Tom D Kite PhD, of Audio Precision, takes […]

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