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audioXpress
The Audio Technology Authority
Web-Exclusice Articles
 The Munich High-End Show 2009 |
By Ward Maas |
|
| Modifying Mighty Mouse |
By Bob McIntyre |
|
| Another Solid-State
Single-Ended Power Amplifier |
By Ron Tipton |
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| We Interview Peter Bartók |
By Paul J. Stamler |
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| A Tiny Vintage Garage Amp |
By John Stewart |
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| Large Signal Analysis Of Differential Triode Tube Amp |
By Muhammad Taher Abuelma'atti |
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| Distorted References |
By David J. Weinberg |
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| Is DVD Opera Ready for Prime Time? |
By Jesse W. Knight |
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| Techniques To Maximize Power Tube Life |
By David C. Gillespie |
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| Excel Circuit Simulation |
By Pierre Touzelet |
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| Project Help |
By Frank Glabach |
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| Decoding the Codes for the MCU Tracer and Digitally Controlled Power Supply |
By Jack Walton |
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| The MCU Tracer, Power
Supply and StampPlot |
By Jack Walton |
Important Articles from Audio Histroy
|
Feedback Amplifiers |
By H.S. Black |
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Loudness & Pitch |
By Harvey Fletcher |
XPRESS Mail
Going Green
from audioXpress October '08
The CES 2008 went green for the first time by promoting audio products using recyclable or green materials—an indication that the industry is starting to pay attention to the undeniable threat of global warming. It is the responsibility of the audio industry to green up, as other industries already are (e.g., the Green Computing initiative by the computer industry). Designing and manufacturing audio products in a way that minimizes the impact on the environment is a very important step...
READ MORE
Soldering
from audioXpress October '08
I was pleased to see Ed Simon’s article (“Soldering: A Tutorial,” March ’08, p. 42): Soldering is a very important topic that is given far too little attention today. I figured I’d add a few comments about irons, and a few more tips about soldering. I was an assembler and an inspector on mil-spec electrical components many years ago, so I have had a bit of practice—and some experience—with what can go wrong if you don’t do it right...
audioXpress Articles & Supplemental Materials
Issue
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Article
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Author
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File(s)
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11/09
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Color figures (figs. 4-6) from the article Distortion Meter
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By Ed Simon
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11/09
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Audio tracks from the article The Essex Echo: Audio According to Hawksford, Pt. 1
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By Jan Didden
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10/09
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Datasheet from the article paX Protection System, Part 3
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By Jan Didden
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9/09
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paX Amplifier Construction Guide from the article paX, Part 2
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By Jan Didden
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8/09
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Circuit boards from Maintaining Your Balance, Part 2
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By Thomas M. Perazella
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7/09
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Rebuilding a Cheap Chinese EL84 Amp
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By Merlin Blencowe
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7/09
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Feedback loop set up from the article Setting Feedback On the Mullard 20
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By Pierre Touzelet
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6/09
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Design and Measurement Of a Dipole Microphone
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By Mark Williamsen
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5/09
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ezDAC
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By Claudio Negro
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4/09
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Modding the Music Hall CD25.2 CD Player
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By Kit Ryan
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3/09
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Excel application for calculation of Vg1T/U from the article Vg1 Correlations
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By Rudy Godmaire
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2/09
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A De-Emphasis Test CD
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By Gary Galo
|
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2/09
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Noise Measurements of the
LSK389B Dual JFET |
By Dennis Colin
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1/09
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Tri-Way PC boards and parts list from the article Tri-Way Low Voltage Supply, Pt. 1
|
Paul J. Stamler
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1/09
|
Jan Didden
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||
12/08
|
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10/08
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Printed circuit boards from the article
An Automated Level Control |
J.R. Laughlin
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10/08
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Figure 3 and 4 from the article
A Beginner 6BQ5 SE Amp |
Rick Spencer
|
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10/08
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An Isolation Transformer, Pt. 3
|
Ed Simon
|
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10/08
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Testing Loudspeakers:
Which Measurements Matter, Part 2 |
Joseph D’Appolito
|
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9/08
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Testing Loudspeakers:
Which Measurements Matter, Part 1 |
Joseph D’Appolito
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9/08
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More Box, Less Sawdust
|
Mark Rumreich
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9/08
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A Line-Cleaning Filter, Pt. 2
|
Ed Simon
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8/08
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An On-Peak Power Supply, Pt. 1
|
Ed Simon
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7/08
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A Belt-Drive Turntable Upgrade
|
Gary Galo
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7/08
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A Graphical Evaluation of Harmonic Distortion in Valves
|
Pierre Touzelet
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6/08
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A Multiple "Wall-Wart" Power Supply
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Ron Tipton
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6/08
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Is SACD Doomed?
|
Gary Galo
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5/08
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Valve (Tube) Regulated Power Supplies
|
Terry Bicknell
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5/08
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The Sidewoofer Line Array
|
Ken Bird
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5/08
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The Mighty Midget
|
Pete Millett
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4/08
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Horn Theory: An Introduction, Part 2
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Bjørn Kolbrek
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4/08
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Everything You Wanted to Know About SPL Meters
|
Ethan Winer
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3/08
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Soldering: A Tutorial
|
Ed Simon
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3/08
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Horn Theory: An Introduction, Part 1
|
Bjørn Kolbrek
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3/08
|
Figure 12
from the article The Noise (Analysys) Machine |
Jack Walton
|
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3/08
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Circuit Board Basics
from the article Amp6 |
J.R. Laughlin
|
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2/08
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AES Multi-Tracks in New York 2007, Pt. 1
|
David J. Weinberg
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1/08
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In Praise of Wall Warts
|
Paul J. Stamler
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1/08
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A Hybrid High-Fidelity Power Amplifier
|
Bill Christie
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12/07
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A Home Theater Preamp
|
Andreas Schilloff
|
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12/07
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The “Amplibass” Control
|
Dennis Colin
|
|
12/07
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Testing Panasonic’s WM-61A Mike Cartridge
|
George Danavaras
|
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12/07
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A Mains Analyzer—How Clean Is Your Juice? Part 2
|
Iain McNeill
|
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11/07
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Intrinsic Fidelity Testing
|
Dennis Colin
|
|
11/07
|
Frequency Delay Dispersion
|
Dennis Colin
|
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11/07
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A Mains Analyzer—How Clean Is Your Juice? Part 1
|
Iain McNeill
|
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11/07
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A Single-Ended Class A Hybrid Amp, Part 2
|
Stephen Moore
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10/07
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A Hybrid Valve MOSFET SE Amp, Part 1
|
Stephen Moore
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10/07
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Hideaway TL Sub Revisited
|
Bjørn Johannesen
|
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10/07
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The Six Tee Nine Tube Amp
|
Randy Miller
|
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9/07
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The Kiss Bass Project
|
Tom Perazella
|
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9/07
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The LP 797 Ultra-Low Distortion Phono Preamp
|
Dennis Colin
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9/07
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More on the Sound Strobe
|
Ed Simon
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8/07
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Analog Bass Control for Magnepans
|
George Danavaras
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Gerber file: LCR _BASS_MNG.zip |
8/07
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Cascoding National's LM12 for 140W
|
Bill Christie
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8/07
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Calibration of the Hickok 539C Tester
|
Daniel Schoo
|
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8/07
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Optimum Stages for Minimal Distortion
|
Dennis Colin
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8/07
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Tweaking the Passive Inverse RIAA Network
|
Dennis Colin
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7/07
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High End 120W MOSFET IC Driven Amp
|
Jack Walton
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Gerber File: LM4702_1.4.zip |
7/07
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The Gamp: Adaptable Power for Tube Amps
|
Paul J. Stamler
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7/07
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High End 120W MOSFET IC Driven Amp
|
Jack Walton
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7/07
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MATAA: A Free Computer-Based Audio Analysis System
|
Matthias S. Brennwald
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6/07
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Iso-Bass: A Subwoofer Isolation Transformer
|
Charles Hansen
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6/07
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An A/B/I Switch
|
Dennis Colin
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6/07
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Radio Shack Sound Level Meter Characteristics
|
Daisuke Koya
|
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6/07
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Testing Amp Peak Power at the RMAF
|
Peter J. Smith
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5/07
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We Visit Mundorf
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Jan Didden
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5/07
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Sources 101: Audio Current Regulator Tests for High Performance.
Part 2: Precise High Current/Voltage Operation |
Walt Jung
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4/07
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Sources 101: Audio Current Regulator Tests for High Performance.
Part 1: Basics of Operation |
Walt Jung
|
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4/07
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A Low-Noise Measurement Preamp
|
Dennis Colin
|
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4/07
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A Flexible Subwoofer Amplifier, Part 4
|
Rudy Godmaire
|
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3/07
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A Flexible Subwoofer Amplifier, Part 3
|
Rudy Godmaire
|
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3/07
|
Word test files from Speech Intelligibility, Part 1
|
Ed Simon
|
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3/07
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A Prototyping System for Passive Crossovers
|
Ramkumar Ramaswamy
|
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2/07
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The Rocky Mountain Audio Fest
|
Bob Cordell
|
|
2/07
|
Transferring LPs to DVDs in High Resolution
|
Victor Staggs
|
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2/07
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How Loud Is Real?
|
Larry Klein
|
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2/07
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A Flexible Subwoofer Amplifier, Part 2
|
Rudy Godmaire
|
|
1/07
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A Flexible Subwoofer Amplifier, Part 1
|
Rudy Godmaire
|
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1/07
|
Grounding and System Interfacing
|
Gary Galo
|
|
1/07
|
Low-Level Analog Switching
|
Dennis Hoffman
|
|
11/06
|
A Phase Meter Calibrator
|
Charles Hansen
|
|
10/06 |
Inside The ISO Max |
Charles Hansen and Gary Galo |
|
10/06 |
DVD Is Audiophile Grade...But Check The Fine Print |
Jesse W. Knight |
|
10/06 |
How To Judge Speaker Quality With Listening Tests (also appears in the September issue of Voice Coil) |
Larry Klein |
|
9/06 |
Plate curves from "Renovating the Scott 222C, Part 5 |
Charles Hansen |
|
8/06 |
Greening of the Behringer Ultra-Drive Pro DCX2496. Here is a newer version of Fig. 5 which may be more clear for readers than the published PCB drawing. Note: The PDF reflects the newer version of Fig. 5. Didden Fig.5.pdf. |
Jan Didden |
|
8/06 |
Equalize The Bass Response Of Your Room (Gerber File and Bass Response Excel Sheet) |
George Danavaras |
Excel Sheet: danavaras notch.xls Gerber File: sw_processor.bot (Right-click and save-as to download file) |
8/06 |
Renovating the Scott 222C, Part 4 |
Charles Hansen |
|
7/06 |
An Improved Split-Load Phase Inverter |
Robert Bennett |
|
7/06 |
Renovating the Scott 222C, Part 3 |
Charles Hansen |
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6/06 |
Renovating the Scott 222C, Part 2 |
Charles Hansen |
|
5/06 |
Renovating the Scott 222C, Part 1 |
Charles Hansen |
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5/06 |
Richard Sears' Biography |
||
5/06 |
Heathkit 6M and 6A schematics |
Bruce Brown |
|
3/06 |
Upgrading Heath's W6 Power Amp |
Bruce Brown |
|
2/06 |
Figures for  QR Letter (XPRESS Mail) |
Paul Kittinger |
|
10/05 |
Gerber Files for A 120W Bridged Chip Amp |
Jack Walton |
|
10/05 |
Workhorses And More! |
Rick Schultz |
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9/05 |
PCB Pictures |
Erno Borbely |
|
9/05 |
Odds
& Evens Revisited with Figure Corrections |
Graham Dicker |
|
6/05 |
24-Step Attenuator Calculator |
Milanuskokovic |
|
5/05 |
Capacitor Bypass: Proceed Carefully |
Paul Stamler |
|
2/05 |
A Study System, Pt. 1 |
Aren van Waarde |
|
2/05 |
High-End Preamp, Pt. 1 |
Benjamin Hinricks |
|
6/04 |
Chassis Drawings and Power Supply Schematic |
Satoru Kobayashi |
|
For archived articles click here
