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Friday, December 17, 2010
PSW Staff 12/17/10 03:28 PM, 0 CommentsAfter more than 20 years of providing sound reinforcement systems for both regional and national productions, North Hollywood-based US Audio and Lighting reports that it has expanded with the addition of a new Northern California satellite office and shop under the direction of Patrick Coughlin. In tandem with the news, the company also announces that it has grown its equipment inventory with the recent acquisition of four L-ACOUSTICS LA-RAK touring racks each loaded with three LA8 amplified controllers. According to… View this story
Filed in: Live Sound • News • Poll • Audio • Business • Line Array • Loudspeaker • Signal • Sound Reinforcement • Subwoofer • System -
Thursday, December 16, 2010
Joan La Roda 12/16/10 02:41 PM, 0 CommentsThis is the third in a multi-part series. Additional segments are available here. Previously we examined the basics of cardioid subwoofer systems. These examples continue that series. Example 2. “Measurements on a real system: two facing forward and one backward” In this example our cardioid configuration uses three stacked DAS LX218A subwoofers. The top and bottom ones are facing forward while the centre one is firing backward. The DAS LX218A subwoofer is a self-powered system incorporating signal processing (crossover and… View this story
Filed in: Live Sound • Feature • Poll • Audio • Line Array • Loudspeaker • Software • Sound Reinforcement • Subwoofer • System -
Monday, December 06, 2010Joan La Roda 12/06/10 03:55 PM, 0 CommentsThis is the second in a multi-part series. Additional segments are available here. Previously we examined the basics of cardioid subwoofer systems. This example continues that series. Example 1. “Scaled down measurements: one cabinet in front and one cabinet behind” Before trying to do these adjustments for the first time in a real- life situation, where one may not always have enough time and where conditions are far from ideal, scaled down measurements can be handy to get some practice… View this story
Filed in: Live Sound • Feature • Poll • Audio • Loudspeaker • Signal • Sound Reinforcement • Subwoofer • System -
Friday, December 03, 2010Joan La Roda 12/03/10 09:59 AM, 2 CommentsThis is the first in a multi-part series. Additional segments are available here. In general, we say that a speaker, or a group of speakers, radiates with a cardioid pattern when it radiates more energy forward than it does backward. Strictly speaking, however, a cardioid pattern is heart shaped (hence the name) and is represented mathematically by the equation ρ = (1 + cos σ), where σ represents the horizontal angle. Setting up subwoofers such that they radiate this way… View this story
Filed in: Live Sound • Feature • Poll • Audio • Loudspeaker • Signal • Sound Reinforcement • Subwoofer • System -
Monday, October 25, 2010
PSW Staff 10/25/10 08:00 AM, 0 CommentsAfter sneak-previewed at Frankfurt 2010 as its European debut, Alcons Audio is now presenting its new BQ211 subwoofer, which extends the low frequency response of the company’s pro-ribbon systems for both permanent and portable applications. It is the first introduction of the upcoming LR24 mid-sized pro-ribbon line-array touring system. The BQ211 is a double-tuned, quarter-wave loaded subwoofer system which is designed to offer maximum, prolonged high impact SPL performance from a comparatively small footprint. Featuring the very latest materials and… View this story
Filed in: Live Sound • News • Poll • Product • Audio • Loudspeaker • Signal • Sound Reinforcement • Subwoofer • System -
Thursday, October 21, 2010
PSW Staff 10/21/10 09:40 AM, 0 CommentsBeyma has announced a new iteration if its X60 subwoofer family, well known by many users worldwide. The new family of products within the LX60V2 family includes the 12LX60V2, 15LX60V2 and 18LX60V2. This update brings improvements in technology, materials and the manufacturing processes itself to the new line. The new units deliver the same response and have equivalent parameters as the previous versions (1400 W power capacity). New features include: • A waterproof treatment for both sides of the cone.… View this story
Filed in: Live Sound • News • Poll • Product • Analog • Audio • Business • Loudspeaker • Manufacturer • Sound Reinforcement • Subwoofer • System -
Wednesday, October 06, 2010
PSW Staff 10/06/10 05:09 PM, 0 CommentsFowler Audio will sponsor a subwoofer array workshop in St. Charles, Missouri, just outside of St. Louis, on Saturday, January 29, 2011, with support from sponsors Logic Systems Sound & Lighting and Olson Sound Design. The event location is the 10,000-seat St. Charles Family Arena. The goal of the workshop is to evaluate a number of horizontal subwoofer array configurations. Key attendees will be asked to supply test configurations, with proposed delay tap values and physical placements worked out in… View this story
Filed in: AV • Live Sound • Church Sound • News • Poll • Product • AV • Audio • Education • Loudspeaker • Measurement • Sound Reinforcement • Subwoofer -
Friday, October 01, 2010
Joan La Roda 10/01/10 12:30 PM, 0 CommentsIn the previous two segments of this series we discussed phase and polarity, what causes phase to vary, what is meant by phase alignment, coherence curves, and we took a look at the first of three illustrative examples. If you haven’t yet read the first two articles in the series, which are available here, I’d urge you to do so. If you’re up to speed and ready to continue, let’s take a look at the rest of our examples Example… View this story
Filed in: Live Sound • Feature • Poll • Audio • Line Array • Loudspeaker • Mixer • Sound Reinforcement • System -
Monday, September 27, 2010
Joan La Roda 09/27/10 02:15 PM, 0 CommentsIn the first part of our series, we took a look at what exactly phase and polarity are, what causes phase to vary, and what is meant by phase alignment. Coherence Curve The coherence curve that Fast Fourier Transform based measurement systems provides indicates the probability that the measurement is reliable. It’s very common to find a coherence curve (ranging from 0 to 1, or from 0% to 100%, depending on the measurement system) with low values in part of… View this story
Filed in: Live Sound • Feature • Poll • Audio • Loudspeaker • Mixer • Signal • Sound Reinforcement • System -
Tuesday, September 21, 2010Joan La Roda 09/21/10 02:25 PM, 0 CommentsThis is the first in a three-part series on phase alignment. Additional segments of the series are available here. FFT based field measurement systems have made it possible for us to do phase alignment at fixed installations as well as at live events, where every venue demands a different approach. This is particularly important these days, since mid-high boxes are often flown and subwoofers remain on the ground, meaning that phase differences at the listener location can be very significant.… View this story
Filed in: Live Sound • Feature • Poll • Audio • Loudspeaker • Manufacturer • Signal • Sound Reinforcement • System
Articles Tagged Subwoofer
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