Low Impedance Calculator

Date Posted 11/12/2025

Toolbox Audio Low Impedance Load Calculator
Low Impedance Load Calculator

Build up a chain of speakers wired in series or in parallel and calculate the total load impedance. Optionally enter your amplifier’s minimum safe impedance to check if the load is within limits.

Total load impedance: Ω
Amplifier minimum impedance:
Status:

Rule of thumb: total load impedance should not go below the amplifier’s minimum rated impedance. Wiring speakers in parallel reduces the total impedance; wiring in series increases it.

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