Why not horns?

I believe the presenter in the Cathedral room (the designer of the speakers I believe) told me it was a vintage Fisher tube amp of some sort, but it was tucked away and I did not see it.

The source was digital, a Marantz player or something along those lines, but not certain.

I wish you could edit,

Prez, you said the outputs of the amp were parallel to double the power. It doesn't work that way. Please clarify.

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Herman ,

That would be bridged for 4 times the power and not necessarily just because it is a monobloc.

What frequency are they rating the bass driver @ 1 K, 100 hz?

Wes, I know nothing about this bass driver. You need to ask Dan.

I understand what bridging an amp is. If you bridge a 75W amp you get 300 watts if the power supply can handle it, not the 150 stated by paralleling it, whatever that means. Perhaps I misunderstood what he meant, that's why I asked him to clarify.

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Required viewing to understand this madness !!!!

http://www.youtube.com/watch?v=xs1aUws0Lrs