The speaker is equipped with a 3-shift switch, so that you can choose between 100V, off and 8ohm. It is a subwoofer with a deep but clean sound. Also, it is a low frequency supplement. It can be used with any ceiling speaker and let the entire sound field to be filled with the energy of the bass.

So this 8 inch subwoofer ceiling speaker is a perfect choice for the place where additional low frequency response is required.