I use a McIntosh C42 and a Radio Shack digital SPL meter and my corrected response is surprisingly flat. The best part is that the C42's eq center frequencies are EXACTLY where all my room modes are. My room response is much better now than it was with Roomtunes and DIY bass traps.
New to EQ
I have a problematic room for room treatment correction. It is big 30X40, used by family, so speakers have to go close to rear wall, lots of windows etc. I now hear about digital EQ. Do I have this right that such a system uses a microphone at the listening postion to assess the room problems, then digitally corrects at the preamp level? Do you have to leave the microphone up, or is that a one time deal? From the threads I hear that there are cheap (300) versions Beringers or something. On these do you use your own ears rather than the microphone and computer? Help. What should I be asking?