All items tagged with vacuum tubes (61)

iFi Introduces Flagship iCAN Phantom Headphone Amplifier

May 29, 2023 by audioXpress Staff

iFi Introduces Flagship iCAN Phantom Headphone Amplifier

iFi, the UK-based brand specializing in lifestyle audio products and high-end hifi components, announced a new reference headphone amplifier. The brand is already recognized for the diverse range of headphone amplifiers, from small and affordable portable devices to high-performance designs to use at home. The new iCAN Phantom is the ultimate effort to create the last headphone amplifier anyone will need, able to drive hypersensitive in-ear monitors, all the way to the most power-hungry electrostatic headphones.

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.

audioXpress.com - The Most Popular Stories of 2022

December 29, 2022 by audioXpress Staff

audioXpress.com - The Most Popular Stories of 2022

We looked at the popular articles of 2021 in audioXpress.com (including selected articles from audioXpress and Voice Coil magazines), and we created this Top 10 list of news stories and online articles. Once again 2022 expanded slightly on the record-breaking year that was 2021 for audioXpress.com, in terms of number of visits and regular users of the website. Visitors from all over the world returned more often to read the more than 8.650 stories available. Which of the topics and stories published online in 2022 were the most popular? Here are the results!

Fresh From the Bench: Western Electric's New Production 300B

August 25, 2022 by Michael Boele

Fresh From the Bench: Western Electric's New Production 300B

Renowned tube expert Michael Boele offers his long-term review of a pair of 2021 new production 300B directly heated power triodes. For 10 months, Boele had the opportunity to live with and extensively use a pair of these 300Bs and his impressions and extensive testing could be directly contrasted with his considerable collection of 300B tubes - Chinese, Russian, Czech and Slovak clones, as well as several pairs of Westrex/Western Electric reissues, and two “old stock” Western Electrics. This article was originally published in audioXpress, May 2022.

Tube Amp Doctor Introduces New TAD 6V6GT-STR REDBASE Premium Selected Tubes

August 4, 2022 by audioXpress Staff

Tube Amp Doctor Introduces New TAD 6V6GT-STR REDBASE Premium Selected Tubes

With the entirely new TAD 6V6GT-STR REDBASE, German company Tube Amp Doctor Musikhandels GmbH introduced a new family member to their REDBASE high quality premium tube series. An ideal tube for Fender Deluxe Tweed 5E3 or Blackface Princeton Reverb guitar amps, single ended Class A amps like the Fender Tweed Champ, Vibro Champ, Fender Champion 600 or the Univalve. As the company explains, many boutique amp builders have already embraced the TAD 6V6GT-STR REDBASE and the company is ready to ship worldwide!

It's Tube Time! audioXpress May 2022 Glass Audio Special!

April 11, 2022 by audioXpress Staff

It's Tube Time! audioXpress May 2022 Glass Audio Special!

It's time for the Glass Audio/Tube Focus edition of audioXpress. In this issue, Michael Boele shares his long-term review of a pair of 2021 new production Western Electric 300Bs, Merlin Blencowe explains how to add Bluetooth to a Tube Amp, and Alan Kimmel introduces us to the possibilities of the Pentriode. There's also a Market Update report on vinyl sales and the latest trends in turntables and cartridges, as well as a review by Stuart Yaniger of the latest Orchard Audio Starkrimson Stereo Ultra GaN-based amplifier.

Why Power Tubes Arc

April 7, 2022 by Edwin G. Pettis

Why Power Tubes Arc

Tube arcing is not necessarily a result of a "bad" tube or a "bad" design. It is far more likely the result of using the tube longer than you should for the application you’re using it. This interesting article, published in audioXpress, November 2004, remains a great read. At the time it also originated a response from Eric Barbour and Ed. T. Dell regarding their experience with cathode stripping.

Meeting Supply for Vacuum Tubes - Time to Save Those Tubes?

March 18, 2022 by Joao Martins

Meeting Supply for Vacuum Tubes - Time to Save Those Tubes?

The situation in Ukraine and the sanctions imposed on Russia are having a significant impact on the global supply of tubes to the audio industry. Both Ukraine and Russia are important suppliers of raw materials, and the sanctions are likely to cause further strain over the supply of source materials that all manufacturers of tubes need. In China there are also significant disruptions caused by pandemic lockdowns, transportation challenges, and cost increases. How many tube manufacturing operations remain viable? Western Electric says there is hope... in the US!

Update Regarding the Supply of Amplifier Tubes from Tube Amp Doctor

March 16, 2022 by Joao Martins

Update Regarding the Supply of Amplifier Tubes from Tube Amp Doctor

It's a known fact that both Ukraine and Russia are important suppliers of raw materials, particularly steel and aluminum, but also many critical parts and components for the electronic industry. The invasion of Ukraine and the resulting sanctions imposed over Russia are obviously having a significant impact over the global supply of tubes. Tube Amp Doctor Musikhandels GmbH, based in Germany, just released a situation update regarding the supply of amplifier tubes.

Western Electric 91E Integrated Stereo Amplifier Available for Pre-Order

January 10, 2022 by audioXpress Staff

Western Electric 91E Integrated Stereo Amplifier Available for Pre-Order

audioXpress readers have long been anticipating the announcement, and Western Electric finally confirmed that the company is taking orders for the new 91E integrated amplifier. Following the resumed production of the 300B triode tubes at the modern Rossville Works facility, Western Electric now launches a single-ended (SE) high-fidelity amplifier inspired by the 91A, its famous predecessor used in early Hollywood motion pictures. The new SE design offers over 20 watts per channel - a first for the 300B in a totally new design for the 21st Century.

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