Amplifier Headroom & Crest Factor Sizer

Enter your target continuous (RMS) power and the crest factor of your program material, and this calculates the peak power your amp channel actually needs to deliver without clipping. Use it when sizing an amp for demanding source material — live drums or uncompressed music need far more headroom than a compressed announcement feed at the same average level.

Target RMS Power (W) Crest Factor (linear ratio, e.g. 4 for 4:1) Calculate