My favorite part is the description versus picture.
The description says "uncarpeted" but the pic has the box with carpet. I wonder how many people order that, and get pissed when it shows up without carpet?? hehehe

Most of the time, the speaker company will include some sort of spec sheet within the box the woofer came in. If not, you might want to talk to the dealer you bought the woofers from, or even the company website. Most will have some basic specs available.

John