All items tagged with audio amplifiers (117)

Audio Electronics - Cascodes, Folded Cascodes, and Current Mirrors (Part 3)

February 2, 2022 by Morty Tarr

Audio Electronics - Cascodes, Folded Cascodes, and Current Mirrors (Part 3)

For those readers following the fascinating article series by Morty Tarr on "Cascodes, Folded Cascodes, and Current Mirrors," this final article in the series contains an additional section with important aspects of amplifier design. In the first two parts of this article series, Tarr discussed the technical merits of cascodes and related circuits. This useful addendum covers a simple test circuit for matching FET devices, the fascinating story of the Blowtorch Line Stage design, and additional notes on inverting and non-inverting amplifier stages and integrators. This article was originally published in audioXpress, December 2021.

Audio Electronics: Cascodes, Folded Cascodes, and Current Mirrors (Part 2)

January 26, 2022 by Morty Tarr

Audio Electronics: Cascodes, Folded Cascodes, and Current Mirrors (Part 2)

In Part 1 of this three-part article about circuit topologies that are used to provide specific functions for an amplifier design, the author discussed cascodes and folded cascodes. In this Part 2, he focuses on current mirrors and line stages. As the author writes, “As designers, we have many devices to choose from. Some devices are ideally suited to certain tasks. Other tasks require performance that is difficult to achieve. While many excellent devices exist today, ideal devices do not exist, except maybe in Spice simulations.” This article was originally published in audioXpress, October 2021.

Audio Electronics: Cascodes, Folded Cascodes, and Current Mirrors (Part 1)

January 19, 2022 by Morty Tarr

Audio Electronics: Cascodes, Folded Cascodes, and Current Mirrors (Part 1)

For this audio electronics article, Morty Tarr wrote a fascinating exploration of circuit topologies that are used to provide specific functions for an amplifier design. Cascodes, folded cascodes, and current mirrors are some of these topologies, intended to improve the performance of the devices, but which also add complications. In the first of a three-part series, the author discusses cascodes and folded cascodes, useful to improve high-frequency response and device linearity.

GaN Systems and Axign Demonstrate New 500W Class-D Reference Audio Amplifier

January 7, 2022 by Joao Martins

GaN Systems and Axign Demonstrate New 500W Class-D Reference Audio Amplifier

GaN Systems, the leading GaN power semiconductor specialist and audio technology innovator Axign, debuted a new groundbreaking GaN-based 500W Class-D audio amplifier. This reference design merges best-in-class technologies, including GaN Systems’ GaN power transistors and Axign’s Class-D controller, enabling companies to create unique audio systems that are smaller, sleeker, more efficient, more powerful, and provide better audio quality than previous generations.

GaN Systems Updates Reference Design for Class-D Audio Amplifiers

January 7, 2022 by Joao Martins

GaN Systems Updates Reference Design for Class-D Audio Amplifiers

GaN Systems, the GaN (gallium nitride) power transistor specialist, announced an updated version of its Class-D audio amplifier evaluation kit, allowing evaluation for high-efficiency audio reference designs. Evolving from the original evaluation kit introduced in 2020, GaN Systems released the GeN2 amplifier and companion switched-mode power supply reference design today, shrinking the size and increasing its capabilities for Class-D audio designs.

Fresh From the Bench: Parasound Halo JC 5 Stereo Power Amplifier - The Measurements

October 27, 2021 by Stuart Yaniger

Fresh From the Bench: Parasound Halo JC 5 Stereo Power Amplifier - The Measurements

Oliver A. Masciarotte was looking for an amplifier that he could respect without emptying his bank account. Richard Schram offered to send the Parasound JC 5, his company’s largest stereo power amplifier for evaluation. Anticipating the fun of enjoying the pleasures of this John Curl design, Oliver accepted the challenge, and Stuart Yaniger tested the JC 5 to confirm the amplifier’s merits with actual measurements. This article was originally published in audioXpress, September 2021.

Fresh From the Bench: Parasound Halo JC 5 Stereo Power Amplifier - Traditional Goodness

October 27, 2021 by Oliver A.Masciarotte

Fresh From the Bench: Parasound Halo JC 5 Stereo Power Amplifier - Traditional Goodness

Oliver Masciarotte was looking for an amplifier that he could respect without emptying his bank account. Richard Schram offered to send the Parasound JC 5, his company’s largest stereo power amplifier for evaluation. Anticipating the fun of enjoying the pleasures of this John Curl design, Oliver accepted the challenge, and Stuart Yaniger tested the JC 5 to confirm the amplifier’s merits with actual measurements. This article was originally published in audioXpress, September 2021.

McIntosh Expands Custom Install for Whole House Audio With New MI1250 12-Channel Power Amplifier

October 14, 2021 by audioXpress Staff

McIntosh Expands Custom Install for Whole House Audio With New MI1250 12-Channel Power Amplifier

McIntosh continues to expand on its 70 years’ legacy in prestigious home entertainment and ultimate-quality audio also with products specifically designed for custom install. Meeting evolving market trends with immersive audio formats and multiroom installations, the Binghamton, NY-based company introduced the MI1250 12-Channel Power Amplifier for whole house audio.

Trinnov Announces New High Channel Density Amplitude16 Power Amplifier

October 11, 2021 by audioXpress Staff

Trinnov Announces New High Channel Density Amplitude16 Power Amplifier

Trinnov Audio, the French designer and manufacturer of reference audio processors for home theaters, high-end hi-fi, professional audio, and commercial cinemas, announced the release of the Amplitude16, a new high channel count power amplifier. Designed for immersive home theaters, with custom integration in mind, the Amplitude16 offers a versatile power amplifier option, providing integrators with the unique ability to meet diverse channel counts and power requirements with exceptional rack efficiency.

Powersoft Strengthens T Series Amplifier Platform with Two New Models

June 22, 2021 by audioXpress Staff

Powersoft Strengthens T Series Amplifier Platform with Two New Models

Powersoft has announced two additions to its T Series of touring and live sound amplifiers. The two new T902 and T904 1U models complete the line of T Series amplifiers, offering higher output possibilities. The T902 features high rail voltage and peak current on the outputs and is ideal for driving large 4-ohm subwoofers or 2 and 3-way line sources. The T904 is designed to power bi-amped systems like stage monitors, 2-way point source speakers, and 2-way line sources.

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