Loudspeakers

September 13, 2010  |   Posted in Sponsor Educational Resources   |   0 Comments  

“Practical Considerations for Field Deployment of Line Array Systems”  pdf (AES) Paper by David Scheirman
An emergent market trend during the past decade, modular line array systems are now being used for a wide variety of sound reinforcement applications… such systems do typically provide relatively narrow vertical coverage patterns and increased apparent gain at distance when compared to more traditional, fan-shaped arrays.

“J and Spiral Line Arrays”  pdf (AES) Paper by Mark Ureda
Straight-line arrays produce highly directional polar response curves in the vertical plane resulting in high on- axis gain. IThis paper derives the directivity functions of two arrays, namely the “J-Array” and the “Spiral Array.”

“Directional Radiation Characteristics of Line Array Systems”  pdf (AES) Paper by Mark Engebretsen
Directional Radiation Characteristics of Articulating Line Array Loudspeaker Systems – Knowledge of line array behavior is important in understanding the directivity of different array configurations, and the management of array coverage areas.

“SAFELY DRIVING YOUR SOUND SYSTEM”  pdf (EV – Bosch Communications Systems)
This application note offers knowledge and techniques that you can use to prevent loudspeaker failures caused by overdriving the sound system.

GUIDE TO CONSTANT-VOLTAGE SYSTEMS (Crown)
by the Crown Engineering staff

Tech Note: Vol 1, #14 – Basic Principles for Suspending Loudspeaker Systems  pdf (JBLPro)
Basic Principles for Suspending Loudspeaker Systems

Speaker Power Requirements  pdf (JBLPro)
Answers To Some Often Asked Questions

Distributed Speaker Systems 101  pdf (JBLPro)
Rick Kamlet – In a typical paging, background music or noise-masking system, several loudspeakers are placed across a single amplifier in parallel. They must often be powered at different levels, and the calculations involved in determining the actual load impedance at the amplifier’s output can be quite tedious.

Designing Better Sounding In-Ceiling Business Music Systems  pdf (JBLPro)
Rick Kamlet

“Analysis of Loudspeaker Line Arrays”  pdf (AES) Journal Article by Mark Ureda
This paper provides a set of mathematical expressions to analyze the performance of loudspeaker line arrays. It begins by developing a set of expressions for straight-line arrays including the directivity function, polar response, quarter-power angle, on-axis and off-axis pressure response and two-dimensional pressure field… the paper…provides expressions for curved (arc), “J” and “progressive” line arrays and more…

“Pressure Response of Line Sources”  pdf (AES) Paper by Mark Ureda
The on-axis pressure response of a vertical line source is known to decrease at 3dB per doubling of distance in the near field and at 6dB in the far field. The present paper shows that the conventional mathematics used to achieve this result understates the distance at which the -3dB to -6dB transition occurs.

Selection and Operation of Personal Monitor Systems  pdf (Shure)
Divided into two sections, the first section gives a short history of monitors and describes, in detail, the benefits of using them. Section two provides specific information on choosing the proper system to meet your needs and the various ways personal monitor systems can be configured.

Dipole – Cardioid Calculator (Acoustic Dimensions)
Interactive Online Tool

Horn Break Frequency (Acoustic Dimensions)
Interactive Online Tool