Contents
Step 1
Select the Correct System...............................................................................................................................3
24vdcSelfAmpliedSystem
70vCentralAmpliedSystem
25vAnd100vCentralAmpliedSystems
Step 2
System Design and Layout..............................................................................................................................5
Spl & Db — How Loud?
Ceiling Speakers
• Speaker Spacing
• How Many Speakers?
• Wheelock Speaker System Calculator
• How Much Power?
• Pattern Of The Layout
Wall Mount Speakers
Horns
Step 3
Select the Correct Amount of Power...............................................................................................................14
PowerSuppliesForSelf-Amplied(24v)Systems
AmpliersForCentralAmplied(70v)Systems
Proper Wire Size
Step 4
Other Considerations......................................................................................................................................18
Telephone System Interface
• Telephone Systems
• Unused Co Ports And Talk Battery
Zone Paging/Zone Controls
Talkback Paging
Accessories
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