Speaker impedance question

Marty Nemanick · From: Madera, California, USA

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 · From: Houston, TX Now in Cleveland TX

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 .
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