Hi,

I put together a centre channel cabinet for my home theatre system using two 2118 drivers. I did some testing using a new SPL meter I picked up and found that it has a huge box resonance (about 20dB) between about 200Hz to 320Hz. I figured it is most likely caused by the cabinet design, possibley using an incorrect ratio of dimensions. The internal dimensions of the cabinet are 8"H X 29"W X 10.5"D with a slot port in the front of 1"X6", also there is quite a bit of internal bracing etc inside the box to make it even smaller. I was thinking maybe I need another well tuned port maybe in the rear of the cabinet or put a gasket between the driver and the box? I was just wondering if maybe someone else out there might have a suggestion.

Thanks,

Kevin