@yogiboy
In a 3-way the midrange has 2 filter sections. A high pass, and a low pass.
In the case of a 2.5 way, the "midrange" is missing the high pass filter.
That is exactly how you define the 2.5 way speaker system.
The woofer and tweeter filters are otherwise the same in either.
I'm not sure about Focal's current line up, but the Focal Profile 918's were an example of a 2.5 way.
In a 3-way the midrange has 2 filter sections. A high pass, and a low pass.
In the case of a 2.5 way, the "midrange" is missing the high pass filter.
That is exactly how you define the 2.5 way speaker system.
The woofer and tweeter filters are otherwise the same in either.
I'm not sure about Focal's current line up, but the Focal Profile 918's were an example of a 2.5 way.