yep, I'm aware of the calibration files, the above program can use calibration files as well. Even I'm an IT guy, I just thought REW had a learning curve that many may find not worth the time. By the way, the above graphs are not mine, just a screen shot of the application.

So far I've been able to get graphs from 18-150hz in 1hz increments with less than 5dB difference across the range.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85