Review on Install Bay 85 9012 12 Inch Hardware by Jeff Bridgewater

Nice and solid but I had to get a 12" to cover my 10" subwoofer. It will probably work fine for a very old or very cheap woofer. I housed my 10" flat Pioneer subwoofer in the bottom of my crossover so I didn't waste valuable cargo space. Had to add a custom 12" spacer ring to raise it over the subwoofer to use it. So it's robust, but it took some tweaking to get it working.