Resource to calculate, building and measuring Hi Fi Loudspeakers and more...

Monday, November 12, 2018
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 Amplifier Power Required

This calculator provides the required electrical output power from the amplifier to produce a desired Sound Pressure Level (SPL) at a given distance, along with an amount of headroom to keep the amplifier(s) out of clip.
Listener Distance from source meters Desired Level at Listener position dB SPL
Loudspeaker Sensitivity Rating dB (1Watt/1meter) Amplifier Headroom dB
Required Amplifier Power Watt