All items tagged with valves (151)
Rocky Mountain Audio Fest 2019: It Was Fun, But It’s Complicated…
September 12, 2019 by Joao Martins

Rocky Mountain Audio Fest 2019: It Was Fun, But It’s Complicated…

Yes, it was strange to fly to Denver, CO so early in September while most of the industry was on the way to Berlin, Germany for another edition of the International Funkausstellung (IFA), the gigantic consumer electronics and appliance show, which rivals CES in visitor numbers. But the fact is, I don’t regret it in the least. Since the 2019 edition of the Rocky Mountain International Audio Fest (RMAF) changed dates to September 6-8, and the CEDIA Expo takes place shortly after also in Denver, it was a great incentive to opt for Colorado instead.
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MasterSounds Introduces High-Quality Compact Tube-Based DJ Mixer
August 20, 2019 by audioXpress Staff

MasterSounds Introduces High-Quality Compact Tube-Based DJ Mixer

Do you like vinyl and have more than one turntable? Maybe you are thinking about investing in a new phono preamp and a way to connect both even if it's probably too late to pretend you can learn to be a DJ (hey but the idea is cool anyway...)? Well, here's an interesting option - a compact tube DJ mixer with high-quality components, great sound and the coolest design. The MasterSounds compact Radius Two Valve is a two channel mixer powered by dual triodes. Read on...
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McIntosh Announces Most Versatile Tube Preamp Ever with New DA2 Digital Module
August 16, 2019 by audioXpress Staff

McIntosh Announces Most Versatile Tube Preamp Ever with New DA2 Digital Module

McIntosh announced the C2700 Vacuum Tube Preamplifier, a highly versatile 16-input preamp which combines 70 years of tube expertise with the very latest high resolution digital audio technology, courtesy of the company’s new, upgradeable DA2 Digital Audio Module (DAC). A reference in home entertainment and high quality audio for 70 years, McIntosh designed a highly versatile, featured-packed tube preamp for today’s modern music lover.
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Fresh From the Bench: Dayton Audio HTA20BT Hybrid Stereo Tube Amplifier
July 24, 2019 by David Logvin

Fresh From the Bench: Dayton Audio HTA20BT Hybrid Stereo Tube Amplifier

David Logvin had the privilege to use, measure, and put to the test the Dayton Audio HTA20BT Hybrid Stereo Tube Amplifier. As he could confirm, there's something special in this amplifier that combines a tube preamp and Class-D power stage, which can also be used as a headphone amplifier, and features a digital media player and Bluetooth streaming capabilities. All at a very affordable price and with the build quality of a Dayton Audio product. This article was originally published in audioXpress, July 2019.
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Loudspeaker Enclosure Materials (Part 1)
July 24, 2019 by Mike Klasco

Loudspeaker Enclosure Materials (Part 1)

In this article for Voice Coil, Mike Klasco (Menlo Scientific, Ltd.) reviews and looks ahead at all the materials and design approaches for loudspeaker enclosures. This article discusses enclosures using wood, MDF, plastic, plastic composites, moldable materials, coatings and pairings for those materials, while also looking at new cutting-edge bio-plastics materials. This article was originally published in Voice Coil, March 2019.
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Microspeakers' Anatomy - How to Design Audio Systems with Very Small Drivers
July 16, 2019 by Mike Klasco and Steve Tatarunis

Microspeakers' Anatomy - How to Design Audio Systems with Very Small Drivers

Audio sound quality optimization in a smartphone, mobile device, display, or laptop computer is the focus here. The goal of this article is not to teach how to design a good microspeaker, but rather to provide information on how to design a good mobile audio system, touching upon speaker design and speaker enclosure techniques. This article was originally published in Voice Coil, May 2010.
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The Nu:Tekt HA-K1 “Tube” Headphone Amplifier by Korg NuTube
July 2, 2019 by Erik Owen

The Nu:Tekt HA-K1 “Tube” Headphone Amplifier by Korg NuTube

For the May 2019 "Glass Audio" special edition, audioXpress asked Erik Owen to share with us his experience with the new Nu:Tekt HA-K1 “Tube” headphone amplifier using the novel Korg Nutube 6P1 device. This interesting headphone amplifier is sold as a kit for $199, it's relatively easy to assemble, and - more interestingly - makes for a practical way to actually induce some of the magic of tubes in a relatively portable configuration.
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Lithium-Ion Battery Inventor Receives the European Inventor Award 2019
June 21, 2019 by audioXpress Staff

Lithium-Ion Battery Inventor Receives the European Inventor Award 2019

Dr. Akira Yoshino, Asahi Kasei Honorary Fellow, has received the European Inventor Award 2019 by the European Patent Office (EPO) in the category of Non-EPO countries for his invention and refinement of the lithium-ion battery. The award ceremony was held on June 20, 2019, in Vienna, Austria, at the Wiener Stadthalle and was attended by some 600 guests from the fields of intellectual property, politics, business, science and academia.
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Warwick Acoustics Introduces APERIO Flagship Electrostatic Headphone System
May 13, 2019 by Joao Martins

Warwick Acoustics Introduces APERIO Flagship Electrostatic Headphone System

Warwick Acoustics, the company behind the multi-award-winning Sonoma Model One electrostatic headphones has launched the APERIO, its new flagship integrated headphone system. Launched at the 2019 High End show in Munich, Germany, the APERIO headphone system introduces the unique Balanced-Drive High Precision Electrostatic Laminate (BD-HPEL), which takes Warwick's original HPEL to a whole new level, complemented with a completely new electronics unit where nothing is missing. The whole system costs US $24,000 but sounds like a million dollars.
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Audio Research Launches New Special Edition CD6 and Reference CD9 Transport/DAC
April 12, 2019 by audioXpress Staff

Audio Research Launches New Special Edition CD6 and Reference CD9 Transport/DAC

Audio Research announced the new CD6SE and Reference CD9SE Compact Disc players featuring redesigned faceplates, with matching buttons, illumination, and black plexiglass display that closely match ARC’s Foundation and Reference-series components. Both SE units boast the latest V3.0 USB audio card, providing compatibility with macOS, Windows 10, and any Linux-based system that supports ALSA devices. This feature allows full streaming capability from products like Aurender, or Roon’s Nucleus.
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