How do I calculate the impedance that results from connecting several loudspeakers?
The total impedance for a number of speakers in parallel is equal to the impedance of one divided by the number of speakers. For instance, two 8-ohm speakers in parallel total 4 ohms (8 ohms divided by 2 speakers equal 4). If the speakers are in series, the total impedance is the sum of the individual impedances of each speaker. For instance, two 8-ohm speakers in series total 16 ohms (8 ohms plus 8 ohms equal 16). In pro audio, series connections are rarely used outside low power applications such as background music, paging, or surround sound.
