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Power alley

Audio term

Power alley is a term used in audio engineering to denote the line between subwoofers where output from each subwoofer is in phase and is noticeably louder.

Problem

Subwoofers placed at each side of the stage will typically cancel unpredictably everywhere in the listening area except along the center line between the speakers. Because of this, placing subwoofer cabinets together tends to give a smoother response to each member of the audience.

Solution

Centering the subwoofers between the high-end cabinets tends to minimize the timing error throughout the listening area. The effects of separated subwoofers are more predictable outdoors; however, subwoofers are often placed together as a starting point for indoor venues as well.

References

Brusi, Joe: ''The "Power Alley" - Discussion & Solutions To The Troubling Interaction Of Subwoofer Stacks'', https://www.prosoundweb.com/the-power-alley-discussion-solutions-to-the-troubling-interaction-of-subwoofers/
Pādrick, Tim: ''Subwoofer Info'', http://www.padrick.net/LiveSound/SubwooferInfo.htm

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

audio-engineering loudspeakers

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