All articles

RIAA revisited, or how to better judge documented figures

Author(s): Polak Hans

Hans Polak noticed that the noise specifications of RIAA preamps are often given in units and operation conditions that make it hard to easily judge the comparative...

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On Digital Audio Formats and the Nyquist - Shannon sampling Theorem

Author(s): Polak Hans

On Digital Audio Formats and the Nyquist – Shannon sampling Theorem      Vol 8

Hans Polak

In Linear Audio Volume 5 Dr. Hans...

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Pin 1 revisited, adding OEO to an accepted rule

Author(s): Polak Hans

Hans Polak used to strictly adherence to the XLR ‘pin 1’ connection rules in his fully balanced audio system. Yet, when switching on his desktop dimmer-...

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Digging deeper into Error Correction

Author(s): Polak Hans

Hans Polak read with great interest Giovanni Stochino’s articles addressing active feedback and error correction in LA Vol 7 and 8. Several implementations...

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An attempt to design a non plus ultra Phono Peamp

Author(s): Polak Hans

There are numerous designs and many commercially available Phono Preamps on the market, but there are  not that many falling in the category extremely good...

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Current Driving of Loudspeakers - book review

Author(s): Polak Hans

With this book, the author succeeded in convincing me that for loudspeakers, current drive is, in theory, superior to voltage drive. But  the industry took...

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Letter of Stefan Heinzmann to Hans Polak on OEO (vol 10)

Mr. Heinzmann takes issue with some of Hans Polaks' statements regarding the need (or not) of grounding both ends of a cable sceen, or just one end. Their views...

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