I don't believe in EQing to try and solve room problems--for what you'd spend on a good EQ you could just as well treat your rooms and get right to the real problem. EQs still won't correct for all the complex problems going on in a bad room. I'm not familiar with the Accuphase, and a several-band parametric wouldn't be enough, and not very natural. I'd recommend experimenting with some room treatments and rent or borrow an RTA to help place them if you're not comfortable doing it by ear.
If the room has acoustic problems, don't change the music--change the room.
If the room has acoustic problems, don't change the music--change the room.