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System Design Tips

Speaker/Horns SPL Guide

    5 W
Speaker
  15 W
Horn
  30 W
Horn
4' .......... 105 dB .......... 121 dB .......... 124 dB
8' .......... 99 dB .......... 115 dB .......... 118 dB
16' .......... 93 dB .......... 109 dB .......... 112 dB
32' .......... 87 dB .......... 103 dB .......... 106 dB
64' .......... 81 dB .......... 97 dB .......... 100 dB
128' .......... 75 dB .......... 91 dB .......... 94 dB
             
Horn output should be 6-10 dB over ambient.
SPL levels are shown at rated output.
Subtract 3 dB for each lower tap setting.