Universal Audio Releases New 4-Channel Volt USB-C Audio Interfaces

Nearly a year past since Universal Audio introduced its fresh range of desktop USB-C audio interfaces with the launch of the Volt series, the company now introduced the Volt 476P and Volt 4 models. Now shipping worldwide, the new 4-in/4-out interfaces offer expanded audio connections with onboard tone shaping, 48V phantom power, Direct Monitoring for latency-free recording, a suite of audio software, and iPad/iPhone connectivity.

Targeting project studios and musicians, Automated Processes Inc., unveiled a new line of professional audio equipment, called API Select. Still designed, built and tested at the API factory in Jessup Maryland, the new API Select range is specifically engineered to complement API's classic mix of microphone preamplifiers, equalizers and compressors, and adds some tube-based designs and guitar-pedal form-factors, which are new to the brand.

For the May 2019 "Glass Audio" special edition, audioXpress asked Erik Owen to share with us his experience with the new Nu:Tekt HA-K1 “Tube” headphone amplifier using the novel Korg Nutube 6P1 device. This interesting headphone amplifier is sold as a kit for $199, it's relatively easy to assemble, and - more interestingly - makes for a practical way to actually induce some of the magic of tubes in a relatively portable configuration.

We have a policy not to publish news items just for the fact that products have been nominated for the NAMM TEC Awards or other awards. Not that they have merit or deserve the recognition, but because it doesn’t add anything to the information already published. We make an exception for Hafler’s HA75 Tube Head, because it’s good to know it’s getting some attention.

In this article, originally published in audioXpress, February 2004, the author describes how to achieve low distortion from power triodes. As he explains, his preamp is “a little different from most, using low-mu power triodes to get good performance with only one amplifier stage, and no negative feedback. This achieves the modest gain required along with very low output impedance.”