The 12L actives have an XLR input on the back so my guess is that he's running them with a balanced preamp. Most subs want a single-ended signal so the cabling of such an arrangement could get complicated. At least, that's the only logical thing I can come up with.
Sucks for both of you that I'm working on your betas then, eh?
In other news Nugget Audio is pleased to announce that we have begun accepting bribes, er, preference payments for those customers wishing to see their projects completed sooner rather than later.
I believe the heat sinks on all of amb's boards are 100% isolated. Yes, they have solder pads and thru-hole plating but they are not tied to the ground plane that I can see.
I heard a brief news story yesterday on a cool app but don't know the full name. I think it's Iphone only but allows you to listen to any of like 400 NPR radio stations. KCRW in Santa Monica alone would make this worthwhile.
Got up, saw that they had not plowed my road, and started the wait. Finally around 10am they rolled through so I went out and cleared the driveway. Went into work for 5hrs. Now I'm baking chocolate chip cookies.