All items tagged with audio electronics (49)

Home Audio, Networks, Practical Electronics, and New Listening Perspectives in audioXpress September 2025

August 12, 2025 by audioXpress Staff

Home Audio, Networks, Practical Electronics, and New Listening Perspectives in audioXpress September 2025

Read the report of the High End 2025 show in Munich, the latest report about Connected Home Audio and Home Theater, and Gary Eickmeier's thought-provoking perspective on An Image Model Theory for Stereo. Learn about Phase Delay, Group Delay, and Circuit Sensitivity Basics, the Dante Virtual Soundcard Pro software, the Universal Audio Apollo x16D audio interface, and the essentials about Audio-Speech Processing and Microphone Arrays. Tom Perazella designed a filter for a SMPS, and Richard Honeycutt explores options to build a tube guitar amp.

Audio THD with QSPICE: An Interview with Mike Engelhardt

July 23, 2025 by Tim McCune

Audio THD with QSPICE: An Interview with Mike Engelhardt

The creator of LTspice has designed a new and much improved simulation tool suite called QSPICE (the Q is for Qorvo, the company that supported the new effort). Mike Engelhardt, physicist, analog engineer, and entrepreneur talked to Tim McCune, former president of Linear Systems, to discuss how QSPICE can help solve many issues that audio designers simulating their circuits might confront.

May 21, 2025 by Joao Martins

Pascal Returns to OEM/ODM Amplifier Technology Business

Pascal has announced the strategic divestiture from its Blaze Audio finished products business, and a return to its core position as a designer and manufacturer of audio amplifier modules, which it used to supply to multiple manufacturers in the audio industry. With the strategic sale of Blaze Audio to Sonance, headquartered in San Clemente, California, effective July 1st, 2025, Pascal hopes to rebuild the company’s reputation that once made it one of the most successful professional audio amplifier companies.

You Can DIY! Built-In Guitar Effects

May 21, 2025 by Ethan Winer

You Can DIY! Built-In Guitar Effects

A fresh, analog-friendly electronics project, this article proposes one of many DIY examples from the author’s Audio Circuits Cookbook. An excellent way to dive into the art of guitar effects and tone shaping, benefiting from the experience of someone who's been doing this since the 1960s, this article shows how to rewire a typical guitar using a Fender Telecaster as the example, and how to build small high-gain circuits like a fuzz-tone or a compressor, to great effect.

Analog Devices Launches MAX98425A and MAX98415A 22V Digital Input Stereo High Efficiency Class-D Amplifiers

May 7, 2025 by Joao Martins

Analog Devices Launches MAX98425A and MAX98415A 22V Digital Input Stereo High Efficiency Class-D Amplifiers

Analog Devices announced two new medium power stereo Class-D amplifier devices intended to deliver maximum efficiency for battery-powered designs, with ultra-low idle current, and still providing the lowest possible distortion at its loudest levels. The MAX98425A is a low noise, Class-D amplifier with digital PCM inputs and filterless operation. The MAX98415A is a smart amplifier with IV feedback routed through the PCM interface data output and featuring a rich set of protection algorithms.

Modern Op-Amp Distortion Tests: Part 2 — A Few More BJT Types and JFET Devices

April 16, 2025 by Douglas Self

Modern Op-Amp Distortion Tests: Part 2 — A Few More BJT Types and JFET Devices

Many new op-amp types have appeared in the last decade, and Douglas Self thought it was time to evaluate those for distortion performance. In Part 1 of his article, he measured BJT-input devices using a similar protocol for five different loads and testing for basic op-amp distortion in favorable circumstances. In this second article, the measurement of BJT types is concluded, and he moves the JFET types to the test bench.

audioXpress May 2025 Brings the Best in DIY Audio with Tubes

April 11, 2025 by audioXpress Staff

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.

Modern Op-Amp Distortion Tests: Part 1 - BJT-Input Devices

April 9, 2025 by Douglas Self

Modern Op-Amp Distortion Tests: Part 1 - BJT-Input Devices

Douglas Self has been using a tried-and-true palette of op-amps in his designs. Because many new types have appeared in the last decade, he thought it was high time to evaluate those for distortion performance. In Part 1 of this article, he examines BJT-input devices using a similar protocol for five different loads and testing for basic op-amp distortion in favorable circumstances. FET input op-amps are investigated in Part 2.

Expand Your Audio Development Skills with audioXpress March 2025

February 12, 2025 by audioXpress Staff

Expand Your Audio Development Skills with audioXpress March 2025

audioXpress March 2025, focused on Test and Measurement and audio electronics, explains how to test Power Amplifiers, and how to measure HDMI Audio. Explore the possibilities of George Ntanavaras' SL-100 Sound Level Adjuster and Tom Perazella's Reinforced Speaker Protection solution. Read the interview with Mike Engelhardt, explaining everything about audio THD with QPSICE circuit simulation. Brian Lowe concludes its article on Op-Amp for Phono Preamps, and much more.

TASCAM Sonicview Recording and Mixing Consoles Receive the Inter BEE 2024 Grand Prix Award

November 22, 2024 by audioXpress Staff

TASCAM Sonicview Recording and Mixing Consoles Receive the Inter BEE 2024 Grand Prix Award

TASCAM received the Inter BEE Grand Prix award for the professional audio category, promoted by the Japan Electronics and Information Technology Industries Association (JEITA). This award was presented on the occasion of the 60th Inter BEE trade show that took place November 13-15, at the Makuhari Messe convention center, just outside of Tokyo. TASCAM was recognized for the development of its Sonicview Digital Mixing Consoles range together with the IF-ST2110 SMPTE ST 2110 networking expansion card.

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