All items tagged with audio amplifiers (133)
STMicroelectronics Announces Flexible, Space-Saving Class-D Amplifier for Car Audio
September 23, 2024 by audioXpress Staff

STMicroelectronics Announces Flexible, Space-Saving Class-D Amplifier for Car Audio

STMicroelectronics' latest HFA80A automotive-grade analog-input class-D audio amplifier combines high efficiency, small size, and a low bill of materials, with load diagnostics optimized for automotive and native electromagnetic compatibility (EMC). With its feedback-before-filter topology and 2MHz nominal PWM frequency, the ST HFA80A lets designers optimize the output filter for the targeted performance and achieve a compact outline with small component values.
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Fresh From the Bench: WiiM Amp Integrated Amplifier and Multiroom Audio Streamer
September 18, 2024 by Oliver A.Masciarotte

Fresh From the Bench: WiiM Amp Integrated Amplifier and Multiroom Audio Streamer

In 2023, audioXpress had the chance to review the "low cost and feature packed" WiiM Pro music streamer and was positively impressed. Never one to sit on their hands, this year the folks at Linkplay have gone one step further with an integrated power amplifier. Expanding its series of best-selling audio streamers, the WiiM Amp is a still-affordable design that combines a TI 3255 Class-D audio amplifier and ESS Sabre premium 32-bit DAC and simplifies the whole audio system setup.
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Interview: Class-D The Hypex Way - An Interview with Jan-Willem Winters
September 12, 2024 by Ward Maas

Interview: Class-D The Hypex Way - An Interview with Jan-Willem Winters

Recognized as one of the firms that pioneered Class-D amplification, today Hypex is an established manufacturer and OEM supplier. Jan-Willem Winters is the CEO leading the strategy behind the expansion that made Hypex one of the major players in the market for high-quality Class-D amplifiers. He started in R&D in 2010, and loves talking about audio amplification.
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Powersoft Updates ArmoníaPlus Software to Support Dolby Atmos Connect AES67
September 12, 2024 by Joao Martins

Powersoft Updates ArmoníaPlus Software to Support Dolby Atmos Connect AES67

In collaboration with Dolby, Powersoft added support for Dolby Atmos Connect AES67 patching into the latest version of its ArmoníaPlus software. The update streamlines the process of connecting its amplifiers to Dolby’s cinema hardware, such as the Dolby Atmos Cinema Processor CP950A or IMS3000, which use AES67 audio-over-Ethernet to send a digital audio stream to external amplifiers. ArmoníaPlus makes it simple for Powersoft's cinema customers to deliver immersive audio to moviegoers.
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NAD Launches New Remote Monitoring and DSP Firmware for CI Amps
August 30, 2024 by audioXpress Staff

NAD Launches New Remote Monitoring and DSP Firmware for CI Amps

NAD Electronics has announced the launch of new firmware for its network-controlled rack-mounted distribution amplifiers which bring an improved webUI for simpler configuration alongside a host of new features. Installers will now be able take advantage of a new dashboard on their CI 16-60, CI 8-120, and CI 8-150 amplifiers, to clearly view amplifier status, a new zone configuration area, as well as further DSP controls like limiters, delay, phase control and EQ adjustments.
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ICEpower – An Audio Company That Also Does Amplifiers
August 28, 2024 by Jan Didden

ICEpower – An Audio Company That Also Does Amplifiers

Europe’s Nordic countries have long been the birthplace for high-quality and innovative audio products, particularly excelling at speakers and amplifiers. Located near Copenhagen, ICEpower has traditionally been known as a purveyor of high-performance Class-D amplifiers and associated switch-mode power supplies. The company continues to provide innovative Class-D solutions today, but its scope is now much broader than that, as this report discloses.
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New Fractal Class-D Audio Amplifier Technology Maximizes Battery Life in TWS Earbuds
August 5, 2024 by Joao Martins

New Fractal Class-D Audio Amplifier Technology Maximizes Battery Life in TWS Earbuds

Typical Class-D amplifiers are generally tuned to give the highest efficiency when outputting large power levels but have a rather low efficiency at lower power levels. Using a new type of bridge configuration, the patented Fractal Class-D audio amplifier improves the efficiency at lower power levels while maximizing efficiency over a wide range of power levels. Available from SiliconIntervention, this technology was developed by Martin Mallinson, the company's founder and chief scientific officer.
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SiliconIntervention: Low-Level Efficiency Improvements in Class-D
July 18, 2024 by Jan Didden

SiliconIntervention: Low-Level Efficiency Improvements in Class-D

Driven by the need to maximize battery life in portable devices, Class-D efficiency at low output levels is receiving greater attention. This is particularly important to achieve longer battery life in designs such as true wireless earbuds. Power optimized amplification is precisely the goal for Multilevel Class-D, and now there's also Fractal Class-D, a new technology developed by SiliconIntervention, a Canadian company formed in 2019 as the result of the pioneering research and development of its founder Martin Mallinson, the former Chief Scientist at ESS Technology.
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MIPI Alliance Announces New Soundwire Device Class for Audio (SDCA) Specification
July 10, 2024 by Cristina Costa

MIPI Alliance Announces New Soundwire Device Class for Audio (SDCA) Specification

The MIPI Alliance, the international organization that develops interface specifications for mobile and mobile-influenced industries, announced the release of MIPI SoundWire Device Class for Audio (MIPI SDCA) v1.0. The new specification enables standardized mechanisms to interact with host-controllable audio devices, such as microphones and amplifiers, connected via a MIPI SoundWire interface. This significantly simplifies and streamlines platform development.
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Interview: An Afternoon with Robert Munnig Schmidt
June 12, 2024 by Jan Didden

Interview: An Afternoon with Robert Munnig Schmidt

Robert Munnig Schmidt is intrinsically connected with advanced motion systems and motional feedback applications. He is now retired from his own consultancy business, following an outstanding career that includes key R&D positions at Philips, being part of the ASML founding team, and teaching Mechatronic System Design at the Delft University of Technology. In this interview, Schmidt revisits the theory and practice of motional feedback, silicon wafer steppers, voice coils, Class-D amplifiers, and much more.
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