Another Linear Audio packed with creative, innovative and thought-provoking articles: Volume 8!
Guest Editorial: John Atkinson, Stereophile’s Editor-in-Chief kicks off on The Art and Science of the Audio Review and the complementarity of measurements and listening tests.
Signal Processing: Hans Polak writes On Digital Audio Formats and the Nyquist-Shannon Sample Theorem.
Circuit design articles: Frank Blöhbaum on Multiplied Transconductance Amplifiers –part 2: high power amplification – up to for 100W SE Class A at vanishingly low distortion. Giovanni Stochino continues Feedback Error Correction – some further thoughts on Part 1. Stuart Yaniger completes Equal Opportunity - A Balanced Moving Magnet Phono Stage - a prototype built and measured. Rudolf Moers studies The Otto Schade Method - A practical design method for rectifier circuits. Marcel van de Gevel comes up with a simple rule for RIAA noise in Gramophone preamplifier noise calculations - the 3852 Hz-rule revisited. Not satisfied with Square Law amplification, Ian Hegglun goes from square law to A Cube Law audio power amplifier – Class A at ¼ of the idle dissipation, and thanks to the continued generosity of the folks at Eurocircuits.com, each Volume 8 comes with a free PCB* for his amp!
Column: Stan Curtis explores the ago-old question: Size does matter. Or does it? - applied to bass speaker drivers.
Product review: Morgan Jones puts The μTracer V3.10 – a curve tracer for valves through its paces.
Book review: Floyd Toole’s Sound Reproduction: The Acoustics and Psychoacoustics of Loudspeakers and Rooms is not really new but enough of a landmark to merit a thorough review. David Moran rose to the challenge.
Note: all PCBs for Ian Hegglun's cubeLaw power amp have been given out, sorry... You can get boards from Mason Green if you wish to build the amp.