This is my source unit,an Alpine CDA-7995. I really like it a lot, having some really useful features and it sounds great. The time correction feature works like a charm. These are my front component speakers (with door grilles off). They are MB Quart's top-of-the-line QSD series, featuring 6.5" mids and titanium dome tweeters. Some bash MB Quart for having harsh tweeters, but I find the tweeters on the QSD set to be unbelievably smooth and precise. Overall, I am very pleased with this set. Now we are getting into the early stages of the enclosure design. The picture at the left are the subs sitting in their separate 1.2^3 sealed enclosures, before the amp racks. The picture at the right is the Avionixx AXA 400.2 which sends 125 watts to side of the QSDs. Also pictured are the massive QSD crossovers which fill up the rest of the top rack.Now we set in the bottom rack which consists of two Avionixx AXT 800.2 amplifiers which send 800 watts to each Elemental Designs E12A subwoofer. Finally, both racks are in place and set in the back of the truck. This is essentially the finished product before the carpeting and top cover. I really would have liked to keep it like this (except carpeted of course) as it shows off the amps and crossovers but I wanted to go with a semi-stealth install to make it nearly impossible for theft. Unless you have about 5 hours and a chainsaw, you aren't getting this box or it's components out. Here we have the finished product with both the top and front covers in place. Overall, it's a nice, simple, and theft preventative install. Fits perfectly in the extended cab region with carpeting to match the interior.