Thanks for the detailed info and pics!

And yeah, I love those EA E7 RCA's as well.

For the system I'm currently working on, I would probably need one of the BT4250 and one or two of the BT4180 as well.

I guess these are made to be placed inside a fairing or in enclosed saddlebags on a HD, but do you think they'd have any problems heatwise buried under a rear quarter trim panel or in the sealed front boot of a Porsche 911?

Would love to have these included in the next high-end "SQ Amplifier Shootout".