Speaker impedance question

[Marty Nemanick]

I recently purchased a pair of Bose outdoor speakers and the sticker read 4ohms. I had to remove the drivers in order to fabricate a mounting bracket and noticed a large resistor inside so I measured the resistance at the terminals and it read 4 ohms but the driver by itself reads 2 ohms. Is it common practice to add a resistor in order to get the desired ohms? Just curious.

Thank you,

Marty

[John Gould]

They do that in some cases where they use the same speaker in multiple devices to save manufacture cost. Most amps don't work well down to a 2ohm load .