If two siren speakers are wired in series, the volume of each speaker will:

If two siren speakers are wired in series, the volume of each speaker will:

• A. Remain the same
• B. Decrease
• C. Increase
• D. Fluctuate

Answer: (B)

When two siren speakers are in series, the same current flows through both, but the total impedance increases. That higher total impedance reduces the current drawn from the siren drive. The supply voltage is then divided between the two drivers, so each speaker receives only part of the voltage. If the speakers are the same, each gets about half the voltage, delivering far less power than a single speaker would with the same source. Since loudness depends on power delivered to the drivers, the volume of each speaker decreases in this setup.

When two siren speakers are in series, the same current flows through both, but the total impedance increases. That higher total impedance reduces the current drawn from the siren drive. The supply voltage is then divided between the two drivers, so each speaker receives only part of the voltage. If the speakers are the same, each gets about half the voltage, delivering far less power than a single speaker would with the same source. Since loudness depends on power delivered to the drivers, the volume of each speaker decreases in this setup.