All items tagged with DIY project (58)

Solid State Logic Introduces ‘Βeta’ 500 Format Module Development Kit

November 2, 2015 by audioXpress Staff

Solid State Logic Introduces ‘Βeta’ 500 Format Module Development Kit

At the 139th AES convention in New York, Solid State Logic announced the introduction of βeta, a unique 500 format module Hardware Development Kit using SSL specific components. Now audio electronics enthusiasts can build creations that will look as cool as they sound and feature real SSL controls.

You Can DIY! Build a Voltage and Current Peak Detector

October 12, 2015 by George Ntanavaras

You Can DIY! Build a Voltage and Current Peak Detector

Here is a simple portable device from George Ntanavaras 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. This article was originally published in audioXpress March 2015 — Focus on Test & Measurement Edition. (Updated Dec 2015)

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.

Extend the useful life of those precious tubes: use a Tube Amplifier High-Voltage Delay

February 25, 2015 by Jan Didden

Extend the useful life of those precious tubes: use a Tube Amplifier High-Voltage Delay

Tube life can be extended if you delay the application of high voltage until after the heaters have warmed up and current can flow. This little module does just that: depending on the setting of a jumper, it delays the high-voltage for 40 or 60 seconds after the amplifier is switched on. And the module is available as a kit. This article was originally published in audioXpress, February 2014.

FREE DOWNLOAD

The Willow Pre-amp: A high slew-rate JFET amplifier

January 17, 2015 by Robert Nance Dee

The Willow Pre-amp: A high slew-rate JFET amplifier

This project, originally published by audioXpress in December 2011, has been the topic of much discussion, updates and follow-up projects, so much so that we decided to make it available online. As the author, Robert Nance Dee, explains, “…the people who have listened to this amp can hear the difference. I built it as a companion to my 5002 power amp, both using the HA5002 buffer.”

An inexpensive, easy-to-build sound level control

December 26, 2014 by J.R. Laughlin

An inexpensive, easy-to-build sound level control

This circuit contains an audio amplifier capable of driving a speaker with circuitry that automatically maintains the same relative maximum output regardless of extreme levels that are occurring at the input. It does not “compress” the peaks, but simply “turns down the volume” as you would do with your volume control

FryKleaner: an Audio Burn-in Generator

December 22, 2014 by Jim Hagerman

FryKleaner: an Audio Burn-in Generator

In this very popular article published by audioXpress in March 2004, Jim Hagerman explains the design theory behind this popular low-cost DIY kit. The FryKleaner was designed to be a complete self-contained burn-in system. Included on the deceptively small circuit board is a very sophisticated waveform generator and built-in power amplifiers capable of directly driving cables. A wall-wart supplies power.

Build a Passive Surround-Sound Decoder

November 29, 2014 by Doug Ford

Build a Passive Surround-Sound Decoder

This article by Doug Ford describes a design for a (relatively) simple passive-matrix surround-sound decoder and the interesting things discovered by the author during the process. The decoder features an analog time delay, implemented with several cascaded all-pass networks and it improves sound system quality by eliminating out-of-phase information.

DIY Microphone Calibration

November 25, 2014 by Ron Tipton

DIY Microphone Calibration

You can inexpensively calibrate a microphone. How? In this article audioXpress author Ron Tipton discusses two methods of “secondary” calibration: the electrostatic actuator and microphone comparison.

Build A High-Quality, High-Power Headphone Amplifier

October 18, 2014 by George Ntanavaras

Build A High-Quality, High-Power Headphone Amplifier

A design based on superior op-amps used in audio applications. A high-quality amplifier must drive high-quality headphones. This article describes the design and construction of a high-quality, high-power headphone amplifier.

«
1
2
3
4
5
6
»