Calculate Required Amplifier Power

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