All items tagged with tubes (119)
The ImPasse Preamplifier
February 6, 2016 by Stuart Yaniger

The ImPasse Preamplifier

Stuart Yaniger wrote a great article for audioXpress in February 2009, The ImPasse Preamplifier, describing a tube preamp to drive a pair of Nelson Pass’ First Watt F4’s (or other low-to-unity-gain power amplifiers) in balanced mono. Yaniger’s preamp is truly an elegant design with very, very low distortion, using a 6SN7 to drive a 6922 in balanced mode. There are LED’s, NE2H neon lamps and depletion MOSFETs in the design.
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Glass Audio Vault: The Remaking of a Champ
November 27, 2015 by Kirk Elliott

Glass Audio Vault: The Remaking of a Champ

Introduced in 1948, the Fender Champ single-ended 5 W guitar amplifier is “the” classic tube practice amplifier and it has been remade a few times over. In 1992, Kirk Elliott shared his take on the design, transforming the stock Champ into a quieter, safer, and more reliable studio amplifier. This article was originally published in Glass Audio Volume 4, Number 2, 1992.
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Cakewalk Announces Windows 10 Support in Latest SONAR Release and Offers Free Demo of Rapture Pro
August 20, 2015 by audioXpress Staff

Cakewalk Announces Windows 10 Support in Latest SONAR Release and Offers Free Demo of Rapture Pro

Cakewalk announced its latest SONAR “Gloucester” release introduces support for Microsoft’s new Windows 10 operating system plus numerous enhancements and fixes. The company is also offering a free demo or Rapture Pro, Cakewalk’s latest virtual instrument for Mac and Windows.
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Musicality and Distortion: A Conversation
July 8, 2015 by Jan Didden, Dennis Colin and Jean Hiraga

Musicality and Distortion: A Conversation

Three audio experts discuss the role of distortion levels in what we hear. The debate was caused by an article titled “Amplifier Musicality - A Study of Amplifier Harmonic Distortion Spectrum Analysis” by Jean Hiraga, which originated comments by Jan Didden, Dennis Colin and a subsequent response by Jean Hiraga. The original article appeared in audioXpress March 2004 and the resulting conversation was published in audioXpress October 2005.
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Special Workshop Hosted by Flex Acoustics at AES 59th International Conference
July 3, 2015 by audioXpress Staff

Special Workshop Hosted by Flex Acoustics at AES 59th International Conference

The upcoming AES 59th International Conference, on Sound Reinforcement Engineering and Technology, will feature a special workshop hosted by Flex Acoustics and will include a demonstration of Flex Acoustics' inflatable membrane low-frequency absorbers, showing the overall effectiveness of their innovative acoustic absorption at low frequencies.
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Radial’s Space Heater 8 Channel Tube Drive and Summing Mixer Now Shipping
June 30, 2015 by audioXpress Staff

Radial’s Space Heater 8 Channel Tube Drive and Summing Mixer Now Shipping

Radial Engineering confirmed the updated version of its long awaited Space Heater is now shipping. The Space Heater is an eight channel tube summing mixer with high voltage tube overdrive, featuring individual input and output control for all eight channels, which took a year to perfect since first announced in 2014.
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Alo Audio Continental Dual Mono Hybrid Headphone Amp with USB DAC
June 8, 2015 by audioXpress Staff

Alo Audio Continental Dual Mono Hybrid Headphone Amp with USB DAC

Promised to start shipping in June, Alo Audio’s new Continental dual mono headphone amp with USB DAC was already the talk of the show at the Headphonium section of The Show Newport. Alo Audio will not be alone with the idea of designing an hybrid tube/solid-state “transportable” headphone amp and USB DAC but it certainly did it with an interesting design.
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Build a Low-Voltage Tube Hybrid Headphone/Line Amp
May 21, 2015 by Pete Millett

Build a Low-Voltage Tube Hybrid Headphone/Line Amp

Here’s a simple, safe, inexpensive project for beginners and those who wish to “try tubes.” Meanwhile the project has been tried, tested, approved and improved, become one of the classic DIY audio projects from the author. This article was originally published in audioXpress magazine, November 2002.
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The Best of Audio Electronics in audioXpress June 2015, Now Online!
May 13, 2015 by audioXpress Staff

The Best of Audio Electronics in audioXpress June 2015, Now Online!

June 2015 is – we have to say it – undoubtedly one of the most diverse and interesting issues we have put together. The magazine has something for everyone and lots of great content we are certain will be greatly appreciated by our community. Discover the “outside-the-box” thinking that resulted in one of the most interesting loudspeaker designs in recent times and much more.
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A Versatile Line Amp for Preamp, Headphone, and Power Use
February 27, 2015 by Joseph Norwood Still

A Versatile Line Amp for Preamp, Headphone, and Power Use

Here’s a do-it-yourselfer’s dream in tube amp design: four operating modes, high quality, low cost, and low distortion. An article originally published by audioXpress in May 2007. A true versatile project which we think deserves to be shared.
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