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70V Speaker Calculator

Newly Added Calculators

70V Speaker Calculator

Sum speaker tap settings (watts) and compare to amplifier continuous rating with a derating headroom you choose.

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What is 70V Speaker Calculator?

Calculates total load, impedance, and current in 70V distributed speaker systems.

70V Speaker Calculator Formula / Method

Ptotal=ΣPiP_total = ΣP_i
Z=V2/Ptotal=5000/PtotalZ = V^2 / P_total = 5000/P_total
I=Ptotal/70.7I = P_total/70.7

70V Speaker Calculator Worked Example

20speakers×5W=>Ptotal=100W20 speakers × 5W => P_total=100W

100W < 200W amp rating

Z=5000/100=50ΩZ=5000/100=50Ω
I=100/70.7=1.41AI=100/70.7=1.41A

Where 70V Speaker Calculator Is Applied

  • Commercial BGM design
  • Retail/hotel sound systems
  • School/PA planning
  • Distributed audio installs

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