Where does it state that? . . .
It's in the manual.
But you still can use the function by canceling whatever band or bands you choose. You need the behringer mike or have to be a math wiz to do the sensitivity setting conversion for other mikes (read dbx).
the best way to learn the 2496 is to play around with it endlessly. Auto EQ will not turn off automaticly but the changes it makes will settle with time if you are conservative with the range parameters.
Pink noise the room at less than 80 dB, as any louder tends to make the auto eq bounce around without settling down. turn off anything that makes noise, such as the furnace, AC, fridge, kids, etc. Start auto eq with narrow parameters for total span and span difference between consecutive bands. increase these levels to suit as you become familiar with the unit.
A good place to start on treating bass response is to measure the room, height, width, and depth. Use the formula for sound wave length (on the internet) to determine the common factor those measurements will contribute to nodes and cut those bands (or as close to them) heavily to begin with.
Want better sound (or at least different)? reverse the phasing of the woofer and panel by jumping the two separate sets of posts on the speaker oppositely (keep the panel normal, switch the woofer around) then do an auto eq and you should see a rise in the band that co-relates to the crossover point of the speaker. just cut that band on the eq. Neet-o.
If you get a hum or the display whacks out on the 2496 and you are using XLR to RCA converter cables, you will need to make up XLR connectors that don't allow the cable shielding to contact the XLR body or cable strain crimp. Let the RCA end take care of shield grounding. you will still need to jump the pins as in the manual though.