All items tagged with tube preamplifier (35)

Ray Tubes Expands Range with Select 12AU7 and Core 12AU7 Vacuum Tubes

August 4, 2025 by Joao Martins

Ray Tubes Expands Range with Select 12AU7 and Core 12AU7 Vacuum Tubes

Ray Tubes announced new-production 12AU7 tubes in both its Core and Select Collections. With this addition, Ray Tubes is now supplying the most common vacuum tubes, including the 12AU7, 12AX7, EL34, 6SN7, KT88, and 300B, all available through its network of retail and brand partners. All products from Ray Tubes are designed and tested specifically for audio applications and come with a one-year warranty, which is a great assurance compared to the risks of buying New-Old-Stock items.

You Can DIY! Type 3 Mu Stage Breakthrough

July 16, 2025 by Alan Kimmel

You Can DIY! Type 3 Mu Stage Breakthrough

The original Mu Stage project, published in Glass Audio in 1993, remains a popular build, serving the author's purpose to "combat listener fatigue." His Type 2 Mu Stage, published by audioXpress in 2019, introduced a streamlined version with added capabilities. Now, the new Type 3 Mu Stage resulted in what the author believes to be a breakthrough, improving the realistic reproduction of music. This latest iteration of the circuit was prototyped by Kim Bond, an enthusiastic builder of the previous Mu Stages.

McIntosh Launches C55 and C2800 Network Connected Preamplifiers

March 14, 2024 by audioXpress Staff

McIntosh Launches C55 and C2800 Network Connected Preamplifiers

McIntosh Laboratory announced the launch of its latest preamplifiers with updated connected features, the return of the Processor Loop, allowing to insert an external signal processor and an update Quad Balanced, 8-channel, 32-bit Digital-to-Analog Converter (DAC) with support for 24-bit/192kHz and DSD512 files. The C55 Solid State Preamplifier and the C2800 Vacuum Tube Preamplifier, are both Roon Tested and offer 16 inputs, including HDMI ARC and a USB input for DSD and DXD 384kHz support, and a dedicated subwoofer output.

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.

McIntosh Announces Next Generation C12000 Two-Chassis Preamplifier

November 18, 2021 by audioXpress Staff

McIntosh Announces Next Generation C12000 Two-Chassis Preamplifier

McIntosh announced the C12000 Preamplifier, a unique two-chassis design that isolates the audio section from the control and power sections, resulting in the purest sound reproduction possible. The C12000 is comprised of the C12000 Controller Module and the C12000 Preamplifier Module which work together seamlessly when connected. This represents an updated approach from the famous brand to this acclaimed two-chassis preamplifier design.

You Can DIY!: Repurposing an Old Preamp for Line-Level Duty

August 19, 2021 by Bill Reeve

You Can DIY!: Repurposing an Old Preamp for Line-Level Duty

This modification and restoration article shows how to preserve the best features of unused tube equipment. The article describes a tube preamplifier that the author wanted to position at the input to his home power amplifier, eliminating the need to adjust his 1972 McIntosh MX10 tuner and 240 power amplifier’s volume high when he wants to fill his home with music. In this case, an old Shure Model 65 stereo conversion preamplifier using two dual-triode 12AX7 tubes provided an excellent platform for the project. This article was originally published in audioXpress, May 2020.

D.W. Fearn Hazelrigg Industries Venture Opens Toronto Offices

July 27, 2021 by audioXpress Staff

D.W. Fearn Hazelrigg Industries Venture Opens Toronto Offices

Since 2017, D.W. Fearn, the manufacturer of professional vacuum tube audio recording equipment, handed over the production and marketing of its iconic line of gear with the distinctive red front panels to Hazelrigg Industries under an exclusive licensing agreement. Now, D.W. Fearn | Hazelrigg Industries, have announced the opening of their first Canadian offices, headed up by tech industry veteran Scott Taylor.

audioXpress May 2021 Celebrates Its Glass Audio and Audio Electronics Roots

April 12, 2021 by audioXpress Staff

audioXpress May 2021 Celebrates Its Glass Audio and Audio Electronics Roots

Our May 2021 Glass Audio Special edition is certain to inform and inspire you. We reveal what is happening at Western Electric's new Rossville Works in Georgia, where production of 300B tubes is ongoing, we explain how to draw tube load lines, and we offer a valuable preamplifier design that enables you to compare the sound of tube and solid-state circuits from the same audio source. There's also a versatile stereo tube amplifier design to build, and plenty more audio electronics theory and practice in this edition. Now available online and in print.

Treat Your Headphones With a McIntosh MHA200 Tube Headphone Amplifier

February 5, 2021 by audioXpress Staff

Treat Your Headphones With a McIntosh MHA200 Tube Headphone Amplifier

McIntosh knows there are a lot of people out there who would like to have a McIntosh tube system, are spending serious money on high end headphones, and could consider a dedicated desktop preamp device that would match their passion - and that's who they designed the MHA200 Vacuum Tube Headphone Amplifier for. A product that is still big enough to proudly show to others, but is actually designed to throw the warmth of tubes when sitting close enough, enjoying long listening sessions.

McIntosh Unveils Most Powerful All-You-Need MA12000 Hybrid Integrated Amplifier

October 14, 2020 by audioXpress Staff

McIntosh Unveils Most Powerful All-You-Need MA12000 Hybrid Integrated Amplifier

70 years since the company's foundation, and McIntosh continues to expand its portfolio of ultimate-quality audio solutions for today's luxury home. The company introduced the MA12000 Hybrid Integrated Amplifier, which is also McIntosh's most powerful integrated amplifier ever, delivering 350 Watts per channel of clean, high performance power that produces a breathtaking home audio experience. This fully loaded, hybrid MA12000 Integrated Amplifier is a product of uncompromising audio engineering and expert craftsmanship.

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