SPL @ Distance from Sensitivity and Power
Continuous SPL from 1 W/1 m sensitivity, amplifier power, and listening distance.
How the SPL power calculator works
Sensitivity at 1 W/1 m, amplifier power, listening distance, and optional peak headroom produce continuous and peak SPL estimates using logarithmic power and distance laws.
Key terms
- Sensitivity - efficiency rating: higher dB means louder per watt.
- Continuous vs peak SPL - programme material has short peaks above average level.
- Inverse square law - ?6 dB per doubling of distance for point sources.
Frequently asked questions
- What is sensitivity? SPL produced at 1 W into 1 m on axis, typically 85-100 dB for pro and hi-fi drivers.