Who really gives a shit! I run my sundown at a half ohm daily and im "not suppose to". Thing don't even get hot, just warm to the touch. Really depends on the quality of the build and if you know what your doing with setup(CLIPPING, voltage drop). I have no experience with Ap nor do I want to so i cant speak for it but even a cheap amp like a Hifonics BXI can take a half ohm daily. I know from experience but it will get VERY hot.
BTW what is the coil config on your treo? There are amps just as good as AQ that you can trade for. Dont sell your self short. Fusion is known to make a pretty worthy amp, and its cheaper.