Jerry, thanks! I posted the pics just for you, since you PM'd me about them sharing in my excitement.

Just wait out front for the UPS truck. Shouldn't take over about 15-20 years for him to get there.

Yeah, I guess ZooDog must be right, the heatsink must be for cooling crossover.

Since they have no amps. Pretty interesting.
Thanks too ZooDog. Oh, the subs are called Velex. hahaha. Get it?

Yes, they are DIY. 12" Adire Shiva drivers, dual ports, and driven by a Parasound 1500A amp. They are only used for home theater, or music driven by my Lexicon MC-1. My dedicated solid state 2 channel is not crossed over with the subs. I don't like involving possibily inferior electronics, and the 40 Hz depth of the Extremas is proving to be sufficient for most of my music.
Lex