Speaker Design

It's impossible to answer this question with any degree of accuracy. The speakers should not sound the same. Crossovers make a huge difference. In this context we don't know if they are going to be shooting for a state-of-the-art, or meeting a pricepoint. I would guess the one Albert von Schweikert does would sound like crap, just like the rest of his products!

The materials used in the crossover will have a huge impact on the sound, and the crossover points and slope will affect the sound as well.

BUT since all amps sound the same, I guess all speakers should too...

I don't know any of the three you mentioned,but I suspect they might say they would not restrict themselves with two constants(cabinet and drivers)and one variable(crossovers),that the three are interrelated.

http://www.northcreekmusic.com

has interesting(to me) information about how a designer(George Short) approaches speaker design.

Nice to see George Short given mention.

I had him hand wire custom crossover networks for a DIY project using his top line parts. The improvement has been nothing less than phenomenal.

Brought the point home to me that crossover assembly and parts quality, as an independent variable from network design, can make a huge performance difference.

jb

I would guess no. More effort will be put into voicing the speaker than the mathematics of the xover design for a given box and drivers would suggest. Since each of the three designers are just like the rest of us with different tastes, perceptions and prejudices, the final product will most likely reflect that. That's why, IMO, different products sound different.