Materials section - sorry for the very crappy pics :(


The Pair of XLS's, t-nuts (which ended up being too large and we had to get new ones from home depot), and the nice dual 5-way/banana, take up to 8g wire! Expensive things though.
Closeup of the termianls and t-nuts
Terminals closeup
T-nuts closeup
Backs of the XLS's
Nice yellow Nomex spiders, very strong cast frame
Closeup of the magnet label (note they are NOT 4ohms woofers, they have a DC resistance of 1.8 ohms, and should be considered as 2ohm woofers under almost any circumstance).
The big 8g push terminals
Finally a better pic ;) The holes in the cone behind the dustcap are done to let the air from inside the voice coil to vent out. On the outside of the voice coil, air vents around the exposed voice coil itself (the supposed to be copper but is really brownish looking ring). This is awesome because it lets a ton of fresh air get right at the coil, but it also allows more dust to buildup on the coil. I dunno how much that matters, but it's probably not a very significant concern. Thanks to MD from [H] for bringing that up!
Back to the front of the woofer, here's the dustcaps Peerless logo.
A little help from Bass Mekanik V5.0's Bass sweeps :) That's around 1inch of movement, about the limit of the linear excursion. It's suspension limit is about 1-7/8's of an inch.
Power side of the amp. 4g power and ground, probably 12g remote, and 8g speaker wire terminals.
Signal side of the amp.
Top of the amp. It's chrome finish (that might be applied onto blue or something like that) and with blue heatsinks on the top and bottom.