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Calculators for sound reinforcement and lighting:
- SPL, SPL addition
- Air absorption
- Ceiling speaker coverage
- Tempo Distance
- Frequency wavelength,
- dBu dBV V
- Q B/W
- Speaker cable. Low impedance, high impedance constant voltage (70V, 100V) lines
- Lighting: DMX, RGB/RGBW/RGBA and CMY
- Other useful calculators for sound and light pros that are not directly related (music, electricity, units...