audioXpress May 2025 Brings the Best in DIY Audio with Tubes

This year’s special Glass Audio issue of audioXpress includes interesting explorations such as the Ultra-Linear Power Amplifier by Rudolf Moers, Micro Details in Push-Pull Output Transformers by Hans Polak, Getting Less Gain From Tubes by Merlin Blencowe, and the Type 3 Mu Stage Breakthrough by Alan Kimmel. This issue also includes two speaker designs from Ben (Wolf) Shaffer and Ken Bird, an article about the intriguing return of 78 rpm records, and Paul Marchese’s Part 2 of his insightful Primer on Class-D Amplifiers. Richard Honeycutt shares how he learned to DIY with Tubes.

There's a lot of everything in audioXpress October 2022. Starting with a market update on audio for Residential Integration. Next, Jonny McClintock shares The Story of aptX, Gary Galo reviews Sumiko phono cartridges and new 78 rpm stylus, Richard Honeycutt explains RT Measurement, Frans de Wit tackles the design of a DC Power Supply, Ken Bird builds a pair of tower speakers with Oaktron drivers manufactured in the US, and Christopher Paul writes about Triode Common Cathode Stages and its controversies.

Originally published in audioXpress June 2006, this interview by Paul Stamler is a unique document detailing the work of Peter Bartók (Budapest, July 31, 1924 – Florida, December 7, 2020) as a pioneering recording engineer and one of the best of the early LP-era engineers, involved in remarkable recordings with his New York City label Bartók Records, and working with Moses Asch’s Folkways Records. He also worked with Caedmon Records, a pioneer in recorded poetry, as well as disk-cutting for early-era Elektra Records and other small NYC area labels.

To celebrate the 50th anniversary of the Technics SL-1200 Series, a limited number of special edition SL-1200M7L direct drive turntables will be released by the Japanese brand. This is a special edition model based on the SL-1200MK7, which was released in 2019. The 50th Anniversary model will be available in seven limited-edition colors to reflect the street culture that continues to inspire generations of DJs.