That's strange ... I'd expect a crossover that's setup for bi-amping would totally isolate each section so it wouldn't matter what you use to power them up. Do yours have a removable bridge to accomplish that?
Even stranger to have a tech support team that actually gets back to you.
On a related note, do they have any power recommendations for each section? Once again, it takes a LOT more power to drive bass properly, so you should (theoretically) be able to go with a smaller amp for the high drivers.
Not that I'm trying to talk you out of going all tube, all the time, but I'd think you'd be able to at least test whether bi-amping is your particular cup of tea with an SS amp you might have laying about ...
Corndog >> I see your point on the crossovers, but at $1800 each, I'd expect the Paradigm's to be a bit above that sort of encheapening ... then again, hard to tell without looking inside.
PS ... here's the 4way crossovers in my McIntosh XR16's ... they look all right to me ... from what I understand, each coil is custom wrapped for that particular box ... not sure how I'd improve on that, but I'm open to suggestions.