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What we are not going to do × Tell you if your speakers are in the right spot × Sell you a brand of speakers × Listen for you


What we will try to do Educate You Offer Tips & Techniques Suggest how you listen to your sound system in your environment Q&A


What can be changed? Placement

Architecture

System Alignment


System Alignment Goals • • • •

Please the Audience Please the Technical Artist Please the Performers & Presenters Eliminate Sound Related Distractions


Big Ideas Interactions

Coverage Patterns


Loudspeaker Interactions • What is an interaction? • Place Interactions where people will not be • Goal is Uniformity


Interactions  More Power Less Clarity Comb Filtering


Coverage Patterns


Inverse Square Law Every doubling in distance from an audio source will decrease the SPL level by 6db.


Inverse Square Law

20ft 100db

40ft 94db

80ft 88db


Inverse Square Law

30ft 100db

60ft 94db


Coverage Patterns

Speaker

Speaker


Vertical Coverage 100db-9db -3db 97db 91db

30’

94db-6db 88db 60’

88db-6db 82db 120’


Horizontal Coverage


Horizontal Coverage


Coverage Patterns • Spokes on the Wheel Concept • Stereo vs. Mono


Horizontal Coverage


Subwoofers • Coupling • Bunkers • Image Distortion


EQ • New Technology + Better Understanding = Clean Slate Speakers Room Resonances You cannot EQ time  Speaker Coupling in Lower Freqs  EQ is the final piece of the puzzle


Professional Help • Training & Experience • Analysis Measurement Equipment • Research by visiting venues they have tuned and listen • Ask questions


Q&A



Are Your Speakers In The Right Spot?