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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…

Ground Loops

Ground Loops

July 15, 2018 · by Bonsai · in Amplifiers, Audio Design Library

Updated with new material 7th January 2019 This set of c. 50 slides is the culmination of my experience over a period of about 25 years building numerous power amplifiers and preamplifiers. I first started out in audio around 1975…

Simple Ripple Eater PSU for the sx and kx-Amplifiers

Simple Ripple Eater PSU for the sx and kx-Amplifiers

June 2, 2018 · by Bonsai · in Amplifiers, Power Amplifiers

  The latest  PCB’s are gold plated,  through hole plated and silk screened for just $11.99 (excl. shipping) and are available from Jim’s Audio here: Ripple Eater PSU for kx and sx Amplifiers Here is an Excel file with the…

kx-amplifier: A very high performance 28 Watt class A Current Feedback Amplifier

kx-amplifier: A very high performance 28 Watt class A Current Feedback Amplifier

March 16, 2018 · by Bonsai · in Amplifiers, Power Amplifiers

The Hifisonix kx-Amplifier is a 28 Watt class A DIY Current Feedback (CFA) power amplifier featuring low distortion, wide bandwidth and fast rise/fall times.  It can be operated either in pure class A mode, or in class AAB mode with…

Very Simple, Accurate RIAA Phono EQ Amp

Very Simple, Accurate RIAA Phono EQ Amp

January 13, 2018 · by Bonsai · in Pre Amplifiers

Very High Quality Silk Screened PCB’s for this project are available from Jim’s Audio here:- Hifisonix RIAA Amplifier Here is a simple no-nonsense, accurate RIAA equalizer amp you can easily build.  The design uses an all-active topology and is based…

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