Audio & Impedance
Decibels, impedance matching, transmission lines, sound pressure, speaker loads, pads and power transfer — the language of audio and RF. Seven complete tools, all live.
01
Decibel Calculator
dB from power or voltage ratios, both directions.
Live 02Impedance Matching
Required Zout, efficiency and reflection |Γ|.
Live 03Transmission Line Impedance
Γ, VSWR and return loss from Z₀ and ZL.
Live 04Audio Power → SPL
Estimated SPL from power and sensitivity.
Live 05Speaker Impedance
Series and parallel combinations of two speakers.
Live 06Audio Attenuator
L-pad series/shunt resistors for a target dB.
Live 07Audio Matching (Max Power)
Delivered power, efficiency and optimal load.
Live