Speaker Impedance Calculator
Calculate series and parallel speaker impedance for 2 to 4 speakers.
Enter impedance for each speaker. Leave unused fields blank.
Enter at least 2 speaker impedances to see results.
When connecting multiple speakers, the total impedance depends on the wiring method.
Series wiring (daisy chain — positive to negative):
- Total = Z1 + Z2 + Z3 + …
- Impedance increases
Parallel wiring (all positives together, all negatives together):
- 1/Total = 1/Z1 + 1/Z2 + 1/Z3 + …
- Impedance decreases
Examples with 8Ω speakers:
| Config | 2 Speakers | 3 Speakers | 4 Speakers |
|---|---|---|---|
| Series | 16Ω | 24Ω | 32Ω |
| Parallel | 4Ω | 2.67Ω | 2Ω |
Important safety note: Most amplifiers have a minimum impedance rating (usually 4Ω or 2Ω). Going below the minimum can damage the amplifier. Always check your amplifier’s specifications before wiring.
Common speaker impedances: 2Ω, 4Ω, 6Ω, 8Ω, 16Ω