All items tagged with tubes (122)
A Glimpse at The Past, Present and Future of Audio in audioXpress February 2018!
January 11, 2018 by audioXpress Staff

A Glimpse at The Past, Present and Future of Audio in audioXpress February 2018!

audioXpress February 2018 explores the progress being made by ORA Sound and GraphAudio, two pioneering companies with distinctly different approaches to the use of graphene based transducers. We explain why open reel analog tapes are coming back in force, the differences between Line Source and Point Source speakers, and how Dante Domain Manager is providing an integrated approach to media network management. All this and much more, now available!
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audioXpress.com: The Most Popular Stories Of 2017
December 27, 2017 by audioXpress Staff

audioXpress.com: The Most Popular Stories Of 2017

This year we thought our readers would like to know which of the topics and stories published online in 2017 were the most popular for our community. We looked at the most-read articles of 2017 in audioXpress.com (which also includes selected articles from Voice Coil magazine), and we created this Top 10 list of news stories and online articles. Here are the results!
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McIntosh MA252 First Ever Hybrid Integrated Amplifier is Now Available
December 4, 2017 by audioXpress Staff

McIntosh MA252 First Ever Hybrid Integrated Amplifier is Now Available

The MA252 Integrated Amplifier is the first ever hybrid integrated amplifier design from McIntosh. Unveiled early November 2017, the MA252 is now shipping. The amp brings the benefits of vacuum tube (valve) to its preamp stage, with solid-state technology on the output stage, all with a visually stunning, integrated package, taking retro design cues from the legendary McIntosh MC275 Vacuum Tube Amplifier.
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Two Swedish Microphone Manufacturers Reunited: Milab Acquires Pearl Microphones
November 22, 2017 by audioXpress Staff

Two Swedish Microphone Manufacturers Reunited: Milab Acquires Pearl Microphones

Swedish microphone manufacturer Milab Microphones AB (Milab) has agreed with the owners of Pearl Mikrofonlaboratorium AB (Pearl) to acquire 100% of the shares in Pearl and consolidate Pearl’s operations and product portfolio into Milab. The two Swedish companies share the same history that goes back to 1941, but went separate ways almost 40 years ago.
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A Modular Hybrid Amp System
November 11, 2017 by Marco Ferretti

A Modular Hybrid Amp System

Tubes or transistors? Whatever your prejudices, this article may make you change your mind about how you view hybrid designs. audioXpress featured this modular hybrid amplifier project in February 2001, which was referenced multiple times by other authors in many subsequent projects. The project features a shunted regulated push-pull (SRPP) stage design, using the ECC82/12AU7 tube combination, followed by a power stage, using two to eight complementary power MOSFETs in parallel.
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A Hybrid Valve MOSFET SE Amp - Complete Project
June 21, 2017 by Stephen W. Moore

A Hybrid Valve MOSFET SE Amp - Complete Project

Published in two separate parts in audioXpress October and November 2007, this hybrid amp design is a detailed and interesting project, frequently referenced by other DIY audio enthusiasts. We thought it was time to make it available online in its entirety, in the best possible quality. The article discusses the unity-gain, single-ended MOSFET output stage, the valve voltage amplification stage and wraps up with the power supplies, printed circuit boards, and construction.
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IFA Berlin 2017 with More Exhibitors and More Innovations Than Ever Before
June 9, 2017 by audioXpress Staff

IFA Berlin 2017 with More Exhibitors and More Innovations Than Ever Before

The International Funkausstellung (or The International Consumer Electronics Show) in Berlin is probably the most important annual event for the consumer electronics industry, introducing new products in time for the most important season of the year for sales. IFA 2016 featured more than 1,800 exhibitors and attracted 240,000 visitors, with the majority of trade visitors coming from outside Germany. The 2016 floor space was already the larger in the show’s history. Expect the 2017 edition to be even larger!...
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Amplifier War and Peace - An Hybrid Amp
June 8, 2017 by Simon Brown

Amplifier War and Peace - An Hybrid Amp

Simon Brown rethinks what he needs as the amp that will be the centerpiece in his own audio system and perfects a previous design with a true hybrid design. As he writes, "This amp is a “hybrid” in many ways. There is the obvious way in which it uses both valves and MOSFETs. But it’s also a hybrid in its use of enriched Class A/B, which means it is running Class A up to a few watts. This is deliberate." Read the complete project now. This article was originally published in audioXpress, March 2007.
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A New Dual Discrete Op-Amp for Audio Products from Orange Amplification
April 21, 2017 by audioXpress Staff

A New Dual Discrete Op-Amp for Audio Products from Orange Amplification

Once in a while, British guitar amp specialists - increasingly turning also into a lifestyle brand - surprise the industry with some unusual products. We've seen Orange introducing headphones, the VT1000 valve/tube tester and even an automatic bias adjustment kit, the DIVO OV4. But now, Orange truly surprised us, with the introduction of its new Dual Discrete Op-Amp, which has been specifically designed for audio use. Orange simply says, "it is one of the most musically sounding of its kind on the market today."
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April 6, 2017 by Shannon Becker

Supplementary Material

All the supplementary material mentioned in published audioXpress and Voice Coil articles is made available in this page.
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