Wednesday, August 31, 2005

RAD2 - Remote Angle Display Inclinometers

The RAD2 Remote Angle Display with dual sensors, the latest addition to Rieker’s RDI Series of digital inclinometers, was specifically designed for speaker and speaker array positioning. This battery-powered digital LCD box can be matched with a number of Rieker sensors, which can then be used interchangeably with the display box to coordinate multiple remote speaker locations.




“Our customers in sound system installation or audio/video contracting typically have a number of speakers that they need to level and only want one display box to configure the array,” said senior engineer Joann Coates. “We can supply the LCD as a single-line display reading one sensor at a time [RAS] or a dual-line display to measure two sensors at the same time [RAD].” Both sensor and display box use standard-type audio XLR cord plug connectors for connection. In most cases, the sensors are permanently mounted on the speakers with cables running down to the floor. The cable connector is then plugged into the display box as needed.

The sensor ranges come in either ±30° (60° total range) or ±70° (140° total range). The display can be calibrated to anywhere within the total range of the sensors specified. Skip Gosnell, the marketing director for Rieker, said, “We have a number of V-DOSC or similar line array installers, for example, who are purchasing the RAD2 dual-line display with the REL feature being programmed to read top–bottom and selecting the ±70° sensors and having them scaled to read +50° to -90°.”

The REL button (relative zero) allows the operator to temporarily zero the digital readout to obtain relative angle changes. The Min/Max function provides the smallest and largest angle that the device has sensed since it was last reset. The optional Relative Difference function can be programmed to give the difference between the top and bottom sensors.

For more information, visit www.riekerinc.com/E-Inclinometers/RDIpdfs/RAD2W.pdf. For more sound reinforcement products, visit mixonline.com/live_sound_products/index.htm.

Thursday, August 25, 2005

Forum for Sound Engineers


We have decided to start this BLOG as a source of information and feedback for sound engineers involved with line arrays. Rieker Electronics Inc. manufactures the RAD2 Remote Angle Display digital inclinometers, designed for speaker and speaker line array positioning. The RAD2 system allows the sound engineer - during installation of line arrays - to maximize the position of the array to provide the best sound for a given space.


Our customers in sound system installation or audio/video contracting typically have a number of speakers or line arrays that they need to level. In the past this was done by visually sighting the display, testing the sound, repositioning the array, testing the sound...until the engineer was satisfied how the music sounded in the particular venue.

Sound system manufacturers have been producing better and more precise sound quality speakers over the past few years. And in order to provide (or take advantage of) the sound quality, a line array's position generally relies on set angles for each speaker in the array. The angle is based on the distance the sound must travel in the space of the venue. Whether using the speaker brand's software or a sheet of paper to calculate the best position of the line array, the engineer still needs to know the angle of the frame or bumber it is being hung on to start the process. That's where we come in...



The RAD2 display box with remote sensors significantly increase the efficiency of hanging concert speakers, while decreasing the amount of time it takes to set up the sound system.

We can supply the LCD as a single-line display reading one sensor at a time [RAS] or a dual-line display to measure two sensors at the same time [RAD]. The sensors can be permantly or temporarily mounted on the speakers with cables running down to the floor. The cable connector is then plugged into the display box as needed.

In this BLOG we hope to address issues facing sound technicians and sound engineers as they prepare concert halls, clubs, stadiums, etc. for the best sound quality. We welcome your comments and questions.

For more information, visit www.riekerinc.com/E-Inclinometers/RDIpdfs/RAD2W.pdf