Nope, these are nearfield acoustic measurements. Even though the drivers were acoustically shielded for one another and / or acoustically isolated these is significant crosstalk. Thus any measurement that is down more than 15dB or so should be viewed as crosstalk influenced. the woofer is the sole exception as it was much better isolated.?
The biggest crosstalk occurs between the Phillips midrange and the MB mid dome at the lower frequencies.
However, the information is still useful to determine general crossovers frequencies and slopes.?
Charlie Conger