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Order: A2410
- HIGH RESOLUTION AUDIO TEST EQUIPMENT
$2.5
Reduced from $3.5. You save $1.00!!
Category: Advanced Topic - 1/3 Octave,
FFT, and TDS Analyzers
Description: The differences in measuring equipment are explained. Drawings and charts demonstrate the output of various professional audio-measuring components. |
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Order: A2419
- TIMING IS EVERYTHING
$3.5
Category: Advanced Topic 555 Timer Circuits
Description: The basic operation of the venerable 555 timer IC is presented. Output coupling with the 2N6387 Darlington is covered. |
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Order: A2577
- BELL LABORATORIES' - ARIEL'S SYSID
$3.5
Category: Advanced Topic Acoustics and Measuring
Description: A look at several contemporary measurement devices with an emphasis on Bell Labs SYSid. Impedance, distortion, and high resolution measurements are discussed. Seven pages long with charts. |
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Order: A2507
- THE ENERGY TIME CURVE
$2.5
Reduced from $3.5. You save $1.00!!
Category: Advanced Topic Acoustics Measurement
Description: The benchmark article discusses the merits of analysis with the Energy vs. Time Curve. Topics of rear fill, and the differences between direct and reflected energy are discusses. A must read for serious competitors. |
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Order: A2412
- SAMPING FACTOR
$2.5
Reduced from $3.5. You save $1.00!!
Category: Advanced Topic Amplifier Damping
Description: Damping factor is defined and the effects are explained for various loads and power levels. Output impedance is defined and a method of calculating damping factor is presented. Effective Damping Factor (EDF) is explained with charts and diagrams. |
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Order: A2482
- THEVENEN & NORTON EQUIVALENTS
$2.5
Reduced from $3.5. You save $1.00!!
Category: Advanced Topic - Circuitry
Description: Engineer John Torres presents equivalent circuits for dependent and independent sources. Examples and schematics are presented. |
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Order: A2567
- HORNS AND LOW FREQUENCY CUTOFF
$3.5
Category: Advanced Topic Compression Drivers and Horns
Description: This benchmark article describes the physical properties that determine the cut-off frequency for horn speakers. Radiation resistance and the physical dimensions of the horn are described. This is a must-read article for anyone serious about horn loaded compression drivers. |
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Order: A2566
- MORE CORNER CONFUSION
$3.5
Category: Advanced Topic Corner Loading and Reality
Description: Benchmark Richard Clark article on low frequency reproduction inside a sealed listening environment. Corner loading is defined and drawings are included. Learn what happens above 50 Hz and below 50 Hz. |
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Order: A2416
- GREMLINS IN THE STEREO MUTE DEVICE
$2.5
Reduced from $3.5. You save $1.00!!
Category: Advanced Topic Current Sensing Circuitry
Description: This article discusses a problem with current sensing circuitry and stereo muting with mobile installed cellular phones. |
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Order: A2404
- DYNAMIC RANGE & LOUDNESS
$2.5
Reduced from $3.5. You save $1.00!!
Category: Advanced Topic Dynamic Range
Description: Modulation envelopes and recording techniques are explained. Dynamic Range and Noise Floor are defined. Test tracks on CD#101 are suggested for experimentation. |
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Order: A2556
- LEAST SQUARES FIT
$2.5
Reduced from $3.5. You save $1.00!!
Category: Advanced Topic Evaluating Data
Description: A mathematical article that describes how data can be manipulated. This is the reason that in testing, we ask for multiple samples and perform multiple tests. Figures included. |
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Order: A2511
- THE PRINCIPLE OF SUPERPOSITION
$2.5
Reduced from $3.5. You save $1.00!!
Category: Advanced Topic How Sound Combines
Description: This benchmark article discusses planar waves, listening through holes, how sound travels around corners. The behavior of sound in air is described in this article with six diagrams. |
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