What happens to the overall impedance when multiple speakers of the same impedance are connected in parallel?

When multiple speakers of the same impedance are connected in parallel, the overall impedance of the system decreases. This is because the total impedance in a parallel circuit can be calculated using the formula for parallel resistances. Specifically, when identical resistances (or impedances) are connected in parallel, the overall impedance is found by taking the individual impedance and dividing it by the number of speakers connected.

For example, if each speaker has an impedance of 8 ohms and there are four speakers connected in parallel, the total impedance can be calculated as follows:

Total Impedance = Individual Impedance / Number of Speakers = 8 ohms / 4 = 2 ohms.

As more speakers are added in parallel, the denominator increases, leading to a reduction in the overall impedance of the system. This principle plays a crucial role in understanding how to manage power distribution and efficiency in audio systems, impacting how amplifiers interact with connected loads. Therefore, when multiple speakers of the same impedance are connected in parallel, the overall impedance indeed becomes lower.