volumes

Volume 8

01/09/2014

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.

Articles in this volume
The Equal Opportunity - A Balanced Moving Magnet Phono Stage (Part 2)
Multiplied Transconductance Amplifiers - part 2 - high power amplification
The Art and Science of the Audio Review
Grammophone preamplifier noise calculations - the 3852 Hz rule revisited
A cube-law power amplifier - Class A at 1/4 of the dissipation
Size does matter. Or does it?
On Digital Audio Formats and the Nyquist - Shannon sampling Theorem
Feedback Error Correction - some further thoughts on Part 1
The Otto Schade method - A practical design method for rectifier circuits
The uTracer V3.10 - a curve tracer for valves
Sound reproduction: The Acoustics and Psychoacoustics of Loudspeakers and Rooms; Floyd E Toole