• June 12, 2019

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This article was originally published in audioXpress, July This results in a stepped back arrangement for mounting the mid and tweeter.

AudioXpress (Vol Issue) January Issue | Hifi Collective

A simple transistor circuit and lamp are connected at the power amplifier output. This circuit measures error relative to the target bias current and error relative to a balanced condition audioxpgess the push-pull pair. I received payment again for this article.

The units and values for the measurements in mR are correct. The Golden Hour was sold essentially unchanged for 41 years starting in December of Quality Issues in Iron Core Coils. There are many other photos and graphs in the article.

Glass Audio Vault: The Remaking of a Champ

Considering all the time and effort audiophiles spend producing such a wide variety of amplifiers, speakers and other devices, the hearing process is just as important as any other part of the music reproduction chain—from the recording to the ear mechanism and nerve impulses sent to the brain to be 207.


The others are various iron core coils I purchased and tested for this article. March 29, by Ron Tipton.

Created by Roger Russell All rights reserved. The picture at the right is part of my General Radio test equipment that I used for the article. Accurately setting the bias level for push-pull output stages is important to maximize amplifier performance and tube life. The power switch is at he left. This article explains about hands attached in the same way but where the glass is not round and cannot rotate.

Includes all new bulbs.

Differences in Amp Sound: How Do We Find the Truth?

November 11, by Michael Rothacher. The DC balance lights are at the top. After about seven go-arounds, it was ready to submit for publication. The Dutch Secret may be the clock that inspired the president of Jefferson Electric to create the first of their clocks, the Golden Hour.

This article was originally published in audioXpress, April The article was based on my test setup at McIntosh lab to select low distortion cores for our crossover coils. Welcome to Hificollective, to create an account please register here x.

This is a very detailed two-part article on how to evaluate speaker systems. I took this cover photo on the left with my hand holding a General Radio sound level meter. This article was published in audioXpress, May As the author described, a great project for discriminating audiophiles.


This project was originally published in audioXpress, June By continuing to use our website you are agreeing to our use of cookies.

This article was originally published in audioXpress, September This article was originally published in audioXpress, May By installing 2X4 rails spaced two feet apart, and a flat carriage with wheels, you can lay 22007 your back and pull yourself from one end of the house to the other. The second part is about ear intricacies and how you hear.

Items about: Project Articles – p 3 | audioXpress

Here is a simple portable device from George Aucioxpress that can help answer the question about peak voltage and peak current requirements and whether or not your power amplifier is capable of driving your loudspeaker without clipping. The photo shows the rear of the expander-compressor.

Return to my main page. Several iron cores were exceptionally good, even up to watts, and a few were bad, even at 15 watts.

Because no one wants to listen to an audio amplifier that hums. There was a 12″ woofer, a 2″ soft dome mid and a 1″ dome tweeter. I calibrated quite a few microphones that year. June 21, by Stephen W.