Measuring about 1 m from the loudspeaker ( only one at a time ) correcting individual drivers with eq is the correct way to do it - agree.I have been using room correction for nearly 20 years, and back then there was only TACT and DEQX. The DEQX has been my weapon of choice (and has served me well)--I favor the philosophy of first EQ'ing the driver response at 1 meter with phase correction, and then and only then judiciously applying room EQ. Anyhow I have been looking for something newer, and between REW, Audiolense, Acourate, MiniDSP using Dirac, etc. it would be a great gift to have a shoot out of sorts. From Mitch's comments, I gather that as much as I like the Acourate approach, the sheer tedium is a huge turnoff. Nor am I inclined to buy a product where the forum is the owners manual.
Wouldn't be lovely to have an $1800. killer unit that could accommodate say a stereo 3 way active speaker with crossovers, a lot of built in automation, have a near SOTA DAC and both balanced, unbalanced, and digital outs all with 24/192 capability? Along of course with all out assault for audio only with whatever latency is required filter bank that is switchable to a more humble video choice filter set that keeps it synced. While we are at it offer modules/licenses for all the room EQ standards such as Dirac.
Theres a lot of confusion here, people trying to correct things from the listening place at 500 Hz or even higher in frequency using two loudspeakers at the same time which is a sure way to get worse sound .
Adysseus and such is not the way to get good sound .
I think DEQX is still the highend choice in active dsp loudspeakers with built in digital crossover . But ofcourse one also has to have a good measurement microphone and measure the right things to get good sound.
In the Genelec SAM cases , digital crossover and individual corrections of drivers is already done in the loudspeaker .
GLM is for the room , and correcting fundamental room resonances ( not reflections ) lower than 80 Hz is always beneficial.