Linear Audio Vol 8: Volume 8

Linear Audio Vol 8 is the ninth issue of a series of printed bookzines dedicated to technical audio and perception.
Guest EditorialJohn Atkinson, Stereophile’ s Editor-in-Chief writes about The Art and Science of the Audio Review and the necessary complementarity of measurements and listening to judge audio quality – a must-read.
Circuit designFrank Blöhbaum is back – in Multiplied Transconductance Amplifiers –part 2: high power amplification he reaches for 100W SE Class A at vanishingly low distortion. Giovanni Stochino amplifies his first article with Feedback Error Correction – some further thoughts on Part 1. Stuart Yaniger completes Equal Opportunity - A Balanced Moving Magnet Phono Stage with a prototype built and measured. Rudolf Moers returns with another in-depth study, this time into The Otto Schade Method - A practical design method for rectifier circuits. In his quest for a simple rule for RIAA noise, Marcel van de Gevel comes up with Gramophone preamplifier noise calculations - the 3852 Hz-rule revisited. Not satisfied with Square Law amplification, Ian Hegglun designed A Cube Law audio power amplifier – Class A at ¼ of the idle dissipation*.
Test and measurementJan Didden looked into the persistent rumours about Thermal transients variation of power amplifier quiescent current and reports his findings.
The Way I see it…Stan Curtis explores the ago-old question: Size does matter. Or does it? applied to bass speaker drivers.
Product ReviewMorgan Jones puts The μTracer V3.10 – a curve tracer for valves through its paces and likes what he finds.
Book reviewFloyd Toole’s Sound Reproduction: The Acoustics and Psychoacoustics of Loudspeakers and Rooms is not really new, but still enough of a landmark to merit a thorough (and critical) review. David Moran rose to the challenge.
Enjoy another issue packed with creative, innovative and thought-provoking articles!
Jan DiddenPublisher/Managing Editor