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RIAA Equalizer Amplifier Design

RIAA Equalizer Amplifier Design

July 22, 2018 · by Bonsai · in Audio Design Library

This article explores the intracacies of phono amplifier design,  culminating in a few practical designs. Special emphasis is placed on overload margins (critical if you want good sonics from your EQ amp), driving the EQ network adequately and noise. RIAA Equalization…

Feedback: A Short History

Feedback: A Short History

October 27, 2017 · by Bonsai · in Useful Audio Links

“Why, sometimes I’ve believed as many as six impossible things before breakfast.” ― Lewis Carroll, Alice in Wonderland     A Future Without Feedback by Martin Colloms There is no mysticism in amplifier design, just serious science. —Andrey A. Danilov Introduction You…

The ‘Feedback is Bad’ Fallacy

August 6, 2014 · by Bonsai · in Audio Design Library, Useful Audio Links

This is one of the most depressing articles I’ve read in a long time about ‘feedback being bad’; it is filled with inaccuracies and for most part plain wrong at every level. Aimed at people who are not technically literate…

Ovation e-Amp Modules

Ovation e-Amp: A 180 Watt Class AB VFA Featuring Ultra Low Distortion

February 2, 2014 · by Bonsai · in Power Amplifiers

The e-Amp is a 180 Watt RMS (very conservatively rated into 8 Ω ) fully balanced symmetrical (‘FBS’) amplifier featuring an emitter follower triple (EFT) bipolar output stage and beta enhanced VAS stage. The amplifier can be configured using jumpers…

Audio Power Amplifier Design - Peter J Baxandall

Audio Power Amplifier Design – Peter J Baxandall

October 31, 2013 · by Bonsai · in Audio Design Library

In this 6 part series of articles published from January 1978 in the now defunct Wireless World magazine, Peter Baxandall takes the reader through some of the fundamentals of audio amplifier design as they were understood at the time.  …

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