If bi-amping is so great, why do some high end speakers not support it?


I’m sure a number of you have much more technical knowledge than I. so I’m wondering: a lot of people stress the value of bi-amping. My speakers (B&W CM9, and Monitor Audio PL100II) both offer the option. I use it on the Monitors, and I think it helps.

But I’ve noticed many speakers upward of $5k, and some more than $50k (e.g., some of Magico) aren’t set up for it.

Am I missing something? Or is this just one of the issues on which there are very different opinions with no way to settle the disagreement?

Thanks folks…


rsgottlieb
Wow i must think about that it depends on the design.Some companies such as Magico think single wiring makes for a more coherent sound.
Because of the expense of more power amps, and external crossover difficulties, very few audiophiles bi-amp.
Focal is of the opinion bi-amping defeats the voicing of their crossovers. Frankly, I think it's a cheap gimmick. You see it all the time on mediocre speakers like Polk RTi and ilk of that range as if someone is buying $1000 speakers and putting $2000 worth of amplifier behind them. Not something I'd ever consider. I highly doubt I can do better than the engineers that voiced my speakers. 
I agree with the above comments. Vandersteen is the exception in that they are designed to be biwired.

http://vandersteen.com/support/faqs
(Scroll down the page)
Interesting stuff. I guess the people who really should answer this would be some speaker manufacturers. Get the ones who do it and the ones who don't together and let the fur fly. 
thanks for your informed responses.