X-Altra RIAA Phono EQ Preamp
The X-Altra MC/MM RIAA Phono EQ article Part 1 and Part 2 were published in the 2021 February and March issues of audioXpress magazine. You can download a copy of both Part 1 and Part 2 from the audioXpress website…
So Just How Quiet is Your Phono Stage?
You may be in for a surprise: actually not that quiet! The reason of course is that the cartridge inductance and resistance dominate the noise in any decent phono amp. To get the best in terms of noise performance, you…
Ground Loops
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
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…
Very Simple, Accurate RIAA Phono EQ Amp
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…
