All items tagged with tube amplifiers (86)

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.

Find All the Cutting-Edge Audio Knowledge in audioXpress February 2025

January 13, 2025 by audioXpress Staff

Find All the Cutting-Edge Audio Knowledge in audioXpress February 2025

Read the Market Update on MEMS microphones, Shure’s valuable perspective about Wireless Multichannel Audio Systems (WMAS) technology, and a review of the extraordinary Eigenmike em64 Ambisonics microphone. Brent Butterworth reviews the new Sony MDR-M1 headphones, and Alex Bonnet and Eric Benhaim (Orosound) explain how to leverage ANC in open-ear designs. Brian Lowe (Belleson) shares his Top Amp design for phono preamps, Douglas Self reveals more op-amp distortion tests, and Richard Honeycutt revisits the legendary Dynaco ST-70 and ST-70 II tube power amps.

Lessons in Life. A Tribute to Peter Janis (1958-2024)

August 15, 2024 by Joao Martins

Lessons in Life. A Tribute to Peter Janis (1958-2024)

Last week I received the very sad news about the passing of Peter Janis, the founder of Radial Engineering. I always admired Radial Engineering for its ability to always surprise and delight with inventive and practical solutions that solved real issues for musicians and audio engineers, in many fields of application. Every time I had the chance to meet Peter Janis at any trade show around the world, I would find that he enjoyed as much to surprise and delight with those inventive and practical solutions.

Marshall Celebrates Celestion's 100th Anniversary With Limited Edition Amp

July 15, 2024 by audioXpress Staff

Marshall Celebrates Celestion's 100th Anniversary With Limited Edition Amp

To mark Celestion speakers' 100th anniversary, Marshall has given the Studio JTM amp a masterful redesign, featuring the introduction of an artisanal 12-inch speaker. Recalling the legacy and sound of Celestion’s first speakers built for electric guitars in the late 50s and early 60’s, the Celestion 100 amp is a display of the long-standing collaboration between the two legendary British companies. This collector’s piece has been handcrafted in the UK and is available for a limited run of just 100 units worldwide.

Centrance Brings AMPmini Class A Headphone Amp to High End Munich 2024

April 29, 2024 by Joao Martins

Centrance Brings AMPmini Class A Headphone Amp to High End Munich 2024

Announced in 2023 and already demonstrated at some of the recent CanJam events, Centrance is now closer to shipping its latest AMPmini, an 8-Watt compact headphone amplifier with a variable tube preamp that allows choosing the amount of tube tone to taste. This unique design perfectly complements the company's DACmini 2 balanced desktop DAC/amp, both featuring a compact aluminum chassis that is designed to stack with the Apple Mac mini or the new Mac Studio, to create a complete premium sound solution for the modern desktop.

audioXpress May 2024 Glass Audio Special Issue Now Available

April 12, 2024 by audioXpress Staff

audioXpress May 2024 Glass Audio Special Issue Now Available

In the 2024 Glass Audio Special issue there’s Menno van der Veen’s TubeSociety TS-2022-OTL hybrid amplifier, and a Low-Feedback Triode Amplifier With Zero Output Impedance (ZOI) as DIY projects, designed by Tim Mellow and Peter Farrow. More great audio electronic articles by Rudolf Moers, Christopher Paul, and Dimitri Danyuk. Read about sustainable acoustical absorption, the Pure Acourate Sound Project, and The Neurochrome Story. And Andrew C. Russell concludes his High-Performance 60-Watt Class A Amplifier project.

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.

Audio-Technica Introduces Narukami Ultra-High-End Tube Headphone Amplifier and Headphones

March 7, 2024 by audioXpress Staff

Audio-Technica Introduces Narukami Ultra-High-End Tube Headphone Amplifier and Headphones

Audio-Technica is introducing its Narukami ultra-high-end audio products, which are meant to take the pursuit of analog and tube sound reproduction to a new level of excellence. Making their US premiere at CanJam NYC 2024 (March 9 – 10 at the Marriott Marquis, New York), the Narukami HPA-KG NARU Tube Headphone Amplifier and ATH-AWKG Closed-Back Dynamic Wooden Headphones are ultimate-quality works of audio art. With a price that could buy a house not a long time ago, this is in the above-luxury category.

Orange Amplification Introduces New Orange Valve Tester MKII

February 22, 2024 by Joao Martins

Orange Amplification Introduces New Orange Valve Tester MKII

British guitar amplification brand has unveiled the Orange Valve Tester MKII which supersedes the Orange VT1000, introduces originally as the world's first automatic digital valve tester pioneered, developed and patented by Orange. The new Orange Valve Tester MKII enables a wide range of tests with speed, simplicity and accuracy, setting a new standard in valve/tube-testing technology for roadies, musicians, hi-fi enthusiasts and service professionals alike.

Audio Electronics: Myths in Tube Circuit Designs

December 20, 2023 by Peter Dieleman

Audio Electronics: Myths in Tube Circuit Designs

Many audioXpress readers will be familiar with Peter Dieleman from his books on the theory and practice of tube amplifiers. In this article he debunks some of the myths, such as load (mis) match in output stages, which is by definition perceived as a bad thing, when that might not be necessarily the case. Another myth example regards the efficiency of a triode output stage versus a pentode.

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