99accordman... huh? We use both round and flat aluminum wire (and some copper for a few things) but leadwire is supposed to be used for attaching the coils to the terminals, not for making voicecoils out of. Not sure if that was what you meant...
Lowjacker... yeah, you and me both. Sorry, still not quite there yet //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
DMZ2711... With the third magnet they are pretty much identical to the MT. Really only difference is that the top plate on the BTL tucks 6mm up into the basket to save a little weight and to help use up some wasted space and keep the rock ratio to a better level. Even with only 2 magnets, they are pretty much identical. There is only a slight loss in motor strength that would not be noticed in most installs (just saves 12+ lbs per sub and your back in trying to stuff them in a wall)
With the venting options it does keep things cooler for daily driving. In testing, much cooler. We are pushing more for the extreme daily systems and Bassrace applications with the cooling and less for many of the pure SPL applications. The cooling doesnt do too much in the way of cooling for short SPL blasts, but it does relieve pressure under the dustcaps which keeps them in certain apps from popping off under extreme pressure.