Audio Electronics: Testing a Tripath Power Amplifier

Our late and much esteemed author, Ron Tipton, shared a fascinating project on testing Class-T or Tripath power amplifiers on the pages of audioXpress. As he characterized, these "small, inexpensive, and power-efficient units," sounded good "but testing them is problematic." The article also discusses the story of Tripath Technology and speculates on the reasons why the Tripath ICs remained popular among the DIY audio community. This article was originally published in audioXpress, March 2014.

From March to August 2014, in his Sound Control column dedicated to acoustics, Richard Honeycutt reviewed and wrote a series of articles on the evolution of predictive acoustics and acoustical modeling software, including a review of some of the available tools. This first article in the series revisits Sabine’s reverberation time equation, all the way to the use of impulse responses and ray-tracing and convolution auralization techniques using modern computers. This article was originally published in audioXpress, March 2014.

In this project article for audioXpress, George Ntanavaras describes the design and construction of a high-quality RIAA preamplifier for moving coil cartridges based on high-quality Analog Device AD797 op-amps designed for low-noise audio applications and driven from very low source impedance. This article was originally published in audioxpress, March 2014.

This month’s audioXpress brings a great article from our regular contributor Thomas Perazella, in which he revisits the art of studio reamping and the different approaches and implications of that two-stage studio process. During the process, we first record a …