I used hardware cloth (aka "chicken wire") over the bottom mounted subs, then covered it with carpet. The result is a very stealthy looking partition. The bass became a bit tighter because I had to make the box a bit smaller for the subs to fit, but I'm happy with how it looks and it still sounds great.

 

looks good....that amp looks huge. What PPI model is it?

 

And I though my amp was huge!

 

Its a PPI4125 (2003 model). Its 4x125watts at 4 ohms and 2x 250 watts at 2 ohms. So I'm running my comps at 125 watts and each sub at 250. Best amp I've ever owned. Its about 25" x 10"

 

I had the same amp but older .. PPI PC4800 .. same size .. HUGE