Goldwood Sound, Inc. Stage Subwoofer, Rubber Surround 8" Woofers 190 Watts each 8ohm Replacement 2 Speaker Set (GW-8028-2)

They sound good ... magnet size is smaller than expected not sure if they are reaching low frequency of 25 HZ as claimed. Disappointed to find out they are made in China and not in the US as you are let to assume

It proves the old adage:" You can't take any loudspeaker and put it into any box and get good results." If you count on these to give you prodigious bass (or any noticeable bass), you will be as disappointed as I was. They are not designed for sealed enclosures. I'm not sure what kind of enclosures they would work with. Speaker systems are a tricky business. The cabinet and its design and dimensions are as important as the quality of the loudspeakers. I suspected the result when I gave the cone a gentle push downward and noted the apparent stiffness in the suspension. That signaled: weak bass. Unless you have an engineering degree and can precisely determine a good match between speaker and enclosure, don't waste time and money taking a crap shot at replacing the woofers in your speaker systems.

I bought these to replace the woofers in my 2 Infinity R4001s. The speaker cabinet mounting holes were slightly wider than the mounting holes in the woofer frames. I was able to flair the screws out enough to capture the cabinet holes. I also had to crimp the connectors on the terminals. Decent bass. I'm happy with them.