All items tagged with Tom Perazella (20)

In-Ear Technology Meets Music Fidelity in audioXpress April 2024!

March 12, 2024 by audioXpress Staff

In-Ear Technology Meets Music Fidelity in audioXpress April 2024!

Read the latest Earbuds and Hearables market update. sensiBel experts explain everything about the advantages of Microphone Array Beamforming with Optical MEMS Microphones. GRAS' researchers share their findings about Ear Canal Geometry for In-Ear Headphone Testing. Learn how Hearing and Audio affects our perception of music fidelity. Jan Didden interviews Menno van der Veen. Andrew Russell shares his High-Performance 60-Watt Class A Amplifier project, and Tom Perazella explains how to build a Comprehensive AC Power Controller.

Spatial, Immersive, Inside and Out Automotive Sound in audioXpress June 2023

May 11, 2023 by audioXpress Staff

Spatial, Immersive, Inside and Out Automotive Sound in audioXpress June 2023

audioXpress June 2023 combines must-read articles on Automotive Audio, essential knowledge, cutting-edge R&D, practical build projects and much more. Learn about the latest innovations and sound design for Electric Vehicles. Read about DSP tuning in automotive audio. Learn about Audioscenic's extraordinary journey in 3D audio beamforming technology, build a new signal amplifier and processor for the ACH-01 Accelerometer, and much more.

audioXpress May 2023. Tubes, Amplifiers, and Audio Electronics!

April 11, 2023 by audioXpress Staff

audioXpress May 2023. Tubes, Amplifiers, and Audio Electronics!

In this Glass Audio special issue, Menno van der Veen brings us his latest Vanderveen TRANS-PP80 Valve Amplifier, Tom Perazella remakes a famous (Z)OTL amplifier with 300Bs, and Peter Dieleman debunks recurring myths in tube circuit designs. Stuart Yaniger reviews the Hypex NCORE NCx500 amplifier module, while Burkhard Vogel expands his article on Vintage Op-Amp Noise Simulations, and Bruce E. Gillingham concludes its unique MB1 Monoblock Power Amplifier with Precision Bias Control.

You Can DIY! Egg Speaker Amp and System

December 21, 2022 by Reinhard Metz

You Can DIY! Egg Speaker Amp and System

Most of our readers still remember Tom Perazella’s extraordinary egg speaker project with SB Acoustics Satori drivers, featured in the September, October, and November 2018 issues of audioXpress. Inspired by that design, Metz decided to build his own version, and also explore his own take with an active crossover tri-amp approach using a miniDSP 4x10HD system feeding a dedicated six-channel amplifier using Purifi 425W Class-D units. The new Egg Speaker Amp and System is an inspired take on the original. This article was originally published in audioXpress, July 2022.

A Look at the Future of Audio in audioXpress November 2022

October 11, 2022 by audioXpress Staff

A Look at the Future of Audio in audioXpress November 2022

audioXpress' November 2022 cover highlights this year's Speaker Design Competition, an extensive Market Update on Wireless Audio technology and two articles addressing Digital Signal Processing techniques. Frans de Wit explains the real improvements that can be achieved on power supply design for high-end audio systems, and Chuck Hansen opens up a valuable series on Power Transformers for audio electronics. Finally, Scott Dorsey visits the Lundahl Transformers factory in Sweden, while Richard Honeycutt revisits Voltage Regulator (VR) Tubes used in Audio Amplifiers.

Acoustics and Great Audio Electronics in audioXpress August 2022

July 12, 2022 by audioXpress Staff

Acoustics and Great Audio Electronics in audioXpress August 2022

The August 2022 issue of audioXpress, Acoustics Focus, gives a unique overview of market trends in acoustical products, with great articles on Acoustic Diffusion, Distributed Subwoofers for Room Modes, and Reverberation Control and Measurement. Michel Nieuwenhuizen proposes an improved microphone preamp for condenser microphones, Aren van Waarde builds a minimalist preamp using only discrete transistors, and Ethan Winer shares circuits for VCA and VCF analog synthesizer modules.

The Many Takes of Audio Amplifiers in audioXpress July 2022

June 13, 2022 by audioXpress Staff

The Many Takes of Audio Amplifiers in audioXpress July 2022

Read audioXpress July 2022 to learn the latest about Audio Amplification technology, an interesting perspective on audio bandwidth measurements, and read the AXPONA 2022 report. On DIY audio, this issue offers a solid-state, modular preamplifier project by Bruce Heran, the Egg Speaker Amp and System by Reinhardt Metz, and how to achieve a triode sound by Richard Honeycutt. And Ethan Winer describes the input stages for his Guitar-Controlled Synthesizer project.

New Approaches to Speaker Optimization in audioXpress December 2021

November 11, 2021 by audioXpress Staff

New Approaches to Speaker Optimization in audioXpress December 2021

audioXpress December 2021 is now available. Learn how Room Correction and Speaker Calibration is influencing efforts towards the Self-Calibrating Loudspeaker, Dirac's take on Spatial Room Correction Technology, and how to Measure Directivity of In-Wall Loudspeakers. Richard Modafferi describes his unique crossover design build, Frans de Wit talks about DC Power Supplies, Morty Tarr discusses important aspects of amplifier design, and Michel Nieuwenhuizen offers an Arduino-based motor control for turntables. Start reading online or in print.

audioXpress August 2021 Focus on Acoustics Issue Now Available

July 13, 2021 by audioXpress Staff

audioXpress August 2021 Focus on Acoustics Issue Now Available

The August 2021 edition of audioXpress is now available in print and online. Read our Acoustical Solutions Round-Up 2021 and enjoy the DIY perspectives from Ethan Winer and Thomas Perazella on dealing with room measurements and treatments. David Logvin reviews Audio Precision's APx517B Acoustic Audio Analyzer, while Richard Honeycutt reflects on acoustic challenges for online and in-person meetings. And we conclude the DH-220C MOSFET Power Amplifier article by Bob Cordell and Rick Savas, and the VSCS Amplifier project in this edition.

2019 Midwest Audiofest Speaker Design Competition

November 21, 2019 by Thomas Perazella

2019 Midwest Audiofest Speaker Design Competition

One of the most important audio events for the speaker building and DIY audio communities, the Midwest Audiofest (MWAF) is held in Springboro, OH, in July every year. Sponsored by an impressive group of vendors and hosted by Parts Express, this event combines several activities including a huge tent sale at Parts Express. For Thomas Perazella the highlight of the event is the Speaker Design Competition, for which he was again one of the competition judges. This article was originally published in audioXpress, October 2019.

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