Stay tuned for updates on this event!

A year ago our last scheduled open house for SFAS members was cancelled due to COVID concerns, but we are now ready to try again. Those of you in the south bay, or who are willing to travel to San Jose, are welcome to visit.  Due to health concerns, *to attend you must be vaccinated, but beyond […]

Join us for what most assuredly will be an interesting and informative afternoon with Frank Doris.  Besides being a truly great person, Frank's vast experience across many facets of the audio world will provide some fascinating conversation.  Here's a brief intro from Frank: "I’ve been an audiophile since I was a teenager and always interested […]

Join us for a social get together, listening session (hear the new MBLs!) and special guest, John Curl at Leslie and Grant's home in Ashland, Oregon. This is a free event for members of SFAS.  The address will be provided to those who have RSVP'd.

The highlight of this event is "single-driver speakers" introducing the Sibelius speakers from Pearl Acoustics. We will listen to two systems: first a brief listen to a DIY amp and single-driver speakers followed by a more extensive listen to affordable commercial equivalents. The goal is to dispel the notion that modern single-driver speakers are "very […]

Join us for an opportunity to hear the latest version (revision) of the Linkwitz open baffle LX521-4 The Reference speaker system (https://linkwitz.store/product/lx521/).  With new drivers, newly re-designed analog active crossovers and power amps resulting in a speaker system that sounds truly exceptional! Here’s an excerpt from a review of the LX521 The Reference speakers by […]

Back by popular demand, a second Linkwitz LX521-4 Speaker event has been added. PLUS, Dr. Frank Brenner is planning on attending the event in Healdsburg.  Dr. Frank Brenner, who has taken up the administration of Linkwitzlab.com from his hometown of Stuttgart, Germany.  (Siegfried Linkwitz passed away in 2018.) Frank left a career as a physician […]

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 […]

This will be a two-part experience (there will be a separate announcement for those members who only want to participate in the listening session and not in the class): A class on the design basics of phono stages from 10:00 to 11:30 AM PST Lunch - there are several locations for lunch nearby A listening […]

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 […]