Latest Past Events

Phono Stage Listening Session, By Ori Mizrahi-Shalom

This is the listening session after the phono stage basic design class in the morning.  Listen to some DIY and inexpensive commercial phono stages. Intro 10 min Main Phono Units: Jim Hunton's Pass DIY Pearl II, separate power supply with shunt regulators, Dayton foil/film caps, DC servo. ($800 total, 20 min main focus) Hagerman Cornet […]


Atma-Sphere Founder Ralph Karsten

Zoom Meeting CA

Join us for an interesting and informative afternoon with Ralph Karsten, founder and CEO of Atma-Sphere. Ralph will discuss his background, how he got into the HiFi business, his unique approach to amplifier design and the latest product line he's working on - a class D GaN amplifier.  It should be an fascinating discussion how […]