A2539

The First National Crank-It-Up Contest
$2.5 Reduced from $3.5. You save $1.00!!

Historical

David Navone describes his job as Head Judge (and rule book writer) for the first National (actually International) car stereo contest at the Houston Astrodome in 1984.

A2514

The World's First Headset
$2.5 Reduced from $3.5. You save $1.00!!

Historical Perspective

Article about Alex Bell’s experiments with earphones and metal detectors.

A2593

A Word On Time Alignment
$3.5

Historical Perspective

A look into the definition and origin of “Time Alignment”.

A2618

What's a Four-Track
$3.5

Historical Perspective

Before the cassette we had the 8-track players. But before the 8-track players, car audio installers work with 4-track players, which were of a higher quality than the 8-tracks.

A2446

Balanced Line Drivers
$3.5

History and Use of BLDs

How balanced circuitry works to reject noise. Balanced transmitters, balanced lines, and balanced receivers are discussed. The differences between single-ended and balanced and conversions to balanced systems are covered.

A2444

The True Story of Car Audio Noise Gates
$3.5

History, design, and use of gating circuitry.

This article explains the background of noise gates in other industries and how and why there were used in car audio competition and demo systems. Topics include VCAs, thresholds, recording techniques, and a list of manufacturers is presented.